Página 1 dos resultados de 528 itens digitais encontrados em 0.027 segundos

## Estudo das propriedades estruturais e ópticas em materiais nanoestruturados a base de silício.; Study of structural and optical properties in nanostructured silicon based films.

Fonte: Biblioteca Digitais de Teses e Dissertações da USP
Publicador: Biblioteca Digitais de Teses e Dissertações da USP

Tipo: Tese de Doutorado
Formato: application/pdf

Publicado em 11/05/2009
PT

Relevância na Pesquisa

57.912583%

#Filmes finos#Fotoluminescência#Luminescent emission#Quantum confinement effect#Silício#Silicon based multilayers#Silicon based films

Esta tese de doutorado tem por objetivo aprofundar as pesquisas realizadas no mestrado, a saber, da caracterização e estudo das propriedades estruturais e ópticas de filmes de oxinitreto de silício (SiOxNy:H) ricos em silício depositados pela técnica de deposição química a vapor assistida por plasma a baixa temperatura (PECVD). Os resultados obtidos no mestrado indicaram que os filmes de SiOxNy:H ricos em silício apresentam emissão luminescente na faixa do visível cuja intensidade e freqüência de emissão estão em correlação com o excesso de silício. Os resultados sugeriram que o excesso de silício na matriz do SiOxNy:H estava disposto na forma de aglomerados de silício de dimensões nanométricas responsáveis por efeitos de tamanho quântico bem como a estados radiativos na interface dos aglomerados com a matriz isolante. Neste trabalho a fim de avaliar o efeito da separação de fases, do tamanho quântico, e da interface, foram produzidos sistemas nanoestruturados a base de silício com total e parcial separação de fases para caracterizar e analisar suas propriedades ópticas e estruturais e compará-las com as dos filmes ricos em silício. Assim foram produzidas multicamadas de a-Si:H de poucos nanômetros de espessura com materiais dielétricos. Em algumas destas multicamadas foi promovida a mistura parcial das camadas por meio de bombardeamento iônico. O estudo nas estruturas de multicamadas permitiu caracterizar e analisar as propriedades estruturais e ópticas de materiais nanoestruturados com total e parcial separação de fases para posteriormente contrastá-los com as características dos filmes de oxinitreto de silício ricos em silício. A fim de analisar a influência da interface nas propriedades ópticas destes sistemas as multicamadas foram fabricadas com dois dielétricos diferentes: o óxido de silício e o ni treto de silício. A espessura das camadas dielétricas foi mantida fixa entanto que a das camadas de silício foi variada para avaliar efeitos de confinamento no silício. A caracterização foi feita utilizando técnicas de absorção óptica no UV-Vis...

Link permanente para citações:

## Properties of nanocones formed on a surface of semiconductors by laser radiation: quantum confinement effect of electrons, phonons, and excitons

Fonte: Springer
Publicador: Springer

Tipo: Artigo de Revista Científica

Publicado em 07/11/2011
EN

Relevância na Pesquisa

67.54851%

On the basis of the analysis of experimental results, a two-stage mechanism of nanocones formation on the irradiated surface of semiconductors by Nd:YAG laser is proposed for elementary semiconductors and solid solutions, such as Si, Ge, SiGe, and CdZnTe. Properties observed are explained in the frame of quantum confinement effect. The first stage of the mechanism is characterized by the formation of a thin strained top layer, due to redistribution of point defects in temperature-gradient field induced by laser radiation. The second stage is characterized by mechanical plastic deformation of the stained top layer leading to arising of nanocones, due to selective laser absorption of the top layer. The nanocones formed on the irradiated surface of semiconductors by Nd:YAG laser possessing the properties of 1D graded bandgap have been found for Si, Ge, and SiGe as well, however QD structure in CdTe was observed. The model is confirmed by "blue shift" of bands in photoluminescence spectrum, "red shift" of longitudinal optical line in Raman back scattering spectrum of Ge crystal, appearance of Ge phase in SiGe solid solution after irradiation by the laser at intensity 20 MW/cm2, and non-monotonous dependence of Si crystal micro-hardness as function of the laser intensity.

Link permanente para citações:

## Nonlinear optical properties of free standing films of PbS quantum dots in the nonresonant femtosecond regime

Fonte: PubMed
Publicador: PubMed

Tipo: Artigo de Revista Científica

Publicado em 17/09/2007
EN

Relevância na Pesquisa

47.781597%

Devices based on optical technology for high speed communication networks require materials with large nonlinear optical response in the ultrafast regime. Nonlinear optical materials have also attracted wide attention as potential candidates for the protection of optical sensors and eyes while handling lasers. Optical limiters have a constant transmittance at low input influence and a decrease in transmittance at higher fluences and are based on a variety of mechanisms such as nonlinear refraction, nonlinear scattering, multiphoton absorption and free carrier absorption. As we go from bulk to nanosized materials especially in the strong quantum confinement regime where radius of the nanoparticle is less than the bulk exciton Bohr radius, the optical nonlinearity is enhanced due to quantum confinement effect. This paper is on the ultrafast nonresonant nonlinearity in free standing films of PbS quantum dots stabilized in a synthetic glue matrix by a simple chemical route which provides flexibility of processing in a variety of physical forms. Optical absorption spectrum shows significant blue shift from the bulk absorption onset indicating strong quantum confinement. PbS quantumdots of mean size 3.3nm are characterized by X-ray diffraction and transmission electron microscopy. The mechanism of nonlinear absorption giving rise to optical limiting is probed using open z-scan technique with laser pulses of 150 fs pulse duration at 780 nm and the results are presented in the nonresonant femtosecond regime. Irradiance dependence on nonlinear absorption are discussed.

Link permanente para citações:

## Quantum confinement in hydrogen bond

Fonte: Wiley-Blackwell
Publicador: Wiley-Blackwell

Tipo: Artigo de Revista Científica
Formato: 765-770

ENG

Relevância na Pesquisa

77.894844%

#quantum confinement#hydrogen bond#supersymmetric quantum mechanics#variational method#NH and OH molecular groups

In this work, the quantum confinement effect is proposed as the cause of the displacement of the vibrational spectrum of molecular groups that involve hydrogen bonds. In this approach, the hydrogen bond imposes a space barrier to hydrogen and constrains its oscillatory motion. We studied the vibrational transitions through the Morse potential, for the NH and OH molecular groups inside macromolecules in situation of confinement (when hydrogen bonding is formed) and nonconfinement (when there is no hydrogen bonding). The energies were obtained through the variational method with the trial wave functions obtained from supersymmetric quantum mechanics formalism. The results indicate that it is possible to distinguish the emission peaks related to the existence of the hydrogen bonds. These analytical results were satisfactorily compared with experimental results obtained from infrared spectroscopy. (c) 2015 Wiley Periodicals, Inc.

Link permanente para citações:

## Strain relaxation and phonon confinement in self-assembled InAsSb/InP (001) quantum dashes: Effect of deposition thickness and composition

Fonte: American Institute of Physics
Publicador: American Institute of Physics

Tipo: Artigo de Revista Científica

Relevância na Pesquisa

67.81292%

This paper presents a study on the strain relaxation and phonon confinement effect in InAsSb/InP
quantum dashes QDashes. The phonon mode with a frequency between that of InAs-like
longitudinal optical mode and that of InP transverse optical mode is determined to be originated
from InAsSb QDashes. Despite the small height of the QDashes, their phonon frequency is found
to be mainly determined by the strain relaxation in the dashes. With increasing InAsSb deposition
thickness and Sb composition in InAsSb dashes, the phonon mode shows an upward shift of its
frequency due to the increased compressive strain.; Financial support from Australian Research Council
DP0774366 is gratefully acknowledged.

Link permanente para citações:

## Anisotropic Quantum Confinement Effect and Electric Control of Surface States in Dirac Semimetal Nanostructures

Fonte: Nature Publishing Group
Publicador: Nature Publishing Group

Tipo: Artigo de Revista Científica

Publicado em 20/01/2015
EN

Relevância na Pesquisa

57.824424%

The recent discovery of Dirac semimetals represents a new achievement in our fundamental understanding of topological states of matter. Due to their topological surface states, high mobility, and exotic properties associated with bulk Dirac points, these new materials have attracted significant attention and are believed to hold great promise for fabricating novel topological devices. For nanoscale device applications, effects from finite size usually play an important role. In this report, we theoretically investigate the electronic properties of Dirac semimetal nanostructures. Quantum confinement generally opens a bulk band gap at the Dirac points. We find that confinement along different directions shows strong anisotropic effects. In particular, the gap due to confinement along vertical c-axis shows a periodic modulation, which is absent for confinement along horizontal directions. We demonstrate that the topological surface states could be controlled by lateral electrostatic gating. It is possible to generate Rashba-like spin splitting for the surface states and to shift them relative to the confinement-induced bulk gap. These results will not only facilitate our fundamental understanding of Dirac semimetal nanostructures, but also provide useful guidance for designing all-electrical topological spintronics devices.

Link permanente para citações:

## Exciton quantum confinement in nanocones formed on a surface of CdZnTe solid solution by laser radiation

Fonte: Springer
Publicador: Springer

Tipo: Artigo de Revista Científica

Publicado em 20/09/2012
EN

Relevância na Pesquisa

57.54851%

The investigation of surface morphology using atomic force microscope has shown self-organizing of the nanocones on the surface of CdZnTe crystal after irradiation by strongly absorbed Nd:YAG laser irradiation at an intensity of 12.0 MW/cm2. The formation of nanocones is explained by the presence of a thermogradient effect in the semiconductor. The appearance of a new exciton band has been observed after irradiation by the laser which is explained by the exciton quantum confinement effect in nanocones.

Link permanente para citações:

## Thickness-Induced Metal-Insulator Transition in Sb-doped SnO2 Ultrathin Films: The Role of Quantum Confinement

Fonte: Nature Publishing Group
Publicador: Nature Publishing Group

Tipo: Artigo de Revista Científica

Publicado em 30/11/2015
EN

Relevância na Pesquisa

57.494697%

A thickness induced metal-insulator transition (MIT) was firstly observed in Sb-doped SnO2 (SnO2:Sb) epitaxial ultrathin films deposited on sapphire substrates by pulsed laser deposition. Both electrical and spectroscopic studies provide clear evidence of a critical thickness for the metallic conductivity in SnO2:Sb thin films and the oxidation state transition of the impurity element Sb. With the shrinkage of film thickness, the broadening of the energy band gap as well as the enhancement of the impurity activation energy was studied and attributed to the quantum confinement effect. Based on the scenario of impurity level pinning and band gap broadening in quantum confined nanostructures, we proposed a generalized energy diagram to understand the thickness induced MIT in the SnO2:Sb system.

Link permanente para citações:

## Interplay between Phonon Confinement and Fano Effect on Raman line shape for semiconductor nanostructures: Analytical study

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 03/08/2015

Relevância na Pesquisa

47.920107%

Theoretical Raman line shape functions have been studied to take care of
quantum confinement effect and Fano effect individually and jointly. The
characteristics of various Raman line shapes have been studied in terms of the
broadening and asymmetry of Raman line shapes. It is shown that the asymmetry
in the Raman line-shape function caused by these two effects individually does
not add linearly to give asymmetry of line-shape generated by considering the
combined effect. This indicates existence of interplay between the two effects.
The origin of interplay lies in the fact that Fano effect itself depends on
quantum confinement effect and in turn provides an asymmetry. This can not be
explained by considering the two effects contribution independent of each
other.; Comment: 10 Pages

Link permanente para citações:

## Effect of interdiffusion and quantum confinement on Raman spectra of the Ge/Si(100) heterostructures with quantum dots

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 10/08/2009

Relevância na Pesquisa

47.751045%

#Condensed Matter - Mesoscale and Nanoscale Physics#Condensed Matter - Materials Science#Physics - Optics

We used Raman scattering for study the phonon modes of self-organized Ge/Si
quantum dots, grown by a molecular-beam epitaxy method. It is revealed, that
Ge-Ge and Si-Ge vibrational modes considerably intensify at excitation of
exciton between the {Lambda}3 valence and {Lanbda}1 conduction bands
(transitions E1 and E1+{Delta}1), that allows to observe Raman scattering
spectrum from extremely small volumes of Ge, even from one layer of quantum
dots with the layer thickness of ~ 10 A. It is shown that Si diffuses into the
Ge quantum dots from the Si spacer layers forming Ge_xSi_{1-x} solid solution,
and Si concentration was estimated. It is revealed, that the frequency of Ge-Ge
mode decreases in 10 1/cm at decreasing of the Ge layer thickness from 10 up to
6 A as a result of phonon size confinement effect.; Comment: Reported at the 16th Int. Symp. "Nanostructures: Physics and
Technology", Vladivostok, Russia, July 14-18, 2008

Link permanente para citações:

## The Fate of the Photon in Topological Matter: Superconductivity, Confinement and the Vortex Quantum Hall Effect

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Relevância na Pesquisa

48.08348%

Topological matter is characterized by the presence of a topological BF term
in its long-distance effective action. Topological defects due to the
compactness of the U(1) gauge fields induce quantum phase transitions between
topological insulators, topological superconductors and topological
confinement. In conventional superconductivity, due to spontaneous symmetry
breaking, the photon acquires a mass due to the Anderson-Higgs mechanism. In
this paper we derive the corresponding effective actions for the
electromagnetic field in topological superconductors and topological
confinement phases. In topological superconductors magnetic flux is confined
and the photon acquires a topological mass through the BF mechanism: no
symmetry breaking is involved, the ground state has topological order and the
transition is induced by quantum fluctuations. In topological confinement,
instead, electric charge is linearly confined and the photon becomes a massive
antisymmetric tensor via the St\"uckelberg mechanism. Oblique confinement
phases arise when the string condensate carries both magnetic and electric flux
(dyonic strings). Such phases are characterized by a vortex quantum Hall effect
potentially relevant for the dissipationless transport of information stored on
vortices.; Comment: 5 pages...

Link permanente para citações:

## Efimov trimers under strong confinement

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Relevância na Pesquisa

47.86868%

The dimensionality of a system can fundamentally impact the behaviour of
interacting quantum particles. Classic examples range from the fractional
quantum Hall effect to high temperature superconductivity. As a general rule,
one expects confinement to favour the binding of particles. However,
attractively interacting bosons apparently defy this expectation: while three
identical bosons in three dimensions can support an infinite tower of Efimov
trimers, only two universal trimers exist in the two dimensional case. We
reveal how these two limits are connected by investigating the problem of three
identical bosons confined by a harmonic potential along one direction. We show
that the confinement breaks the discrete Efimov scaling symmetry and destroys
the weakest bound trimers. However, the deepest bound Efimov trimer persists
under strong confinement and hybridizes with the quasi-two-dimensional trimers,
yielding a superposition of trimer configurations that effectively involves
tunnelling through a short-range repulsive barrier. Our results suggest a way
to use strong confinement to engineer more stable Efimov-like trimers, which
have so far proved elusive.; Comment: 8 pages, 4 figures. Typos corrected, published version

Link permanente para citações:

## Quantum Confinement in Hydrogen Bond

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 09/02/2015

Relevância na Pesquisa

67.894844%

In this work, the quantum confinement effect is proposed as the cause of the
displacement of the vibrational spectrum of molecular groups that involve
hydrogen bonds. In this approach the hydrogen bond imposes a space barrier to
hydrogen and constrains its oscillatory motion. We studied the vibrational
transitions through the Morse potential, for the NH and OH molecular groups
inside macromolecules in situation of confinement (when hydrogen bonding is
formed) and non-confinement (when there is no hydrogen bonding). The energies
were obtained through the variational method with the trial wave functions
obtained from Supersymmetric Quantum Mechanics (SQM) formalism. The results
indicate that it is possible to distinguish the emission peaks related to the
existence of the hydrogen bonds. These analytical results were satisfactorily
compared with experimental results obtained from infrared spectroscopy.; Comment: 20 pages, 2 figures. To appear in Int.J.Quantum Chem

Link permanente para citações:

## Suppressing the loss of ultracold molecules via the continuous quantum Zeno effect

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Relevância na Pesquisa

57.358184%

We investigate theoretically the suppression of two-body losses when the
on-site loss rate is larger than all other energy scales in a lattice. This
work quantitatively explains the recently observed suppression of chemical
reactions between two rotational states of fermionic KRb molecules confined in
one-dimensional tubes with a weak lattice along the tubes [Yan et al., Nature
501, 521-525 (2013)]. New loss rate measurements performed for different
lattice parameters but under controlled initial conditions allow us to show
that the loss suppression is a consequence of the combined effects of lattice
confinement and the continuous quantum Zeno effect. A key finding, relevant for
generic strongly reactive systems, is that while a single-band theory can
qualitatively describe the data, a quantitative analysis must include multiband
effects. Accounting for these effects reduces the inferred molecule filling
fraction by a factor of five. A rate equation can describe much of the data,
but to properly reproduce the loss dynamics with a fixed filling fraction for
all lattice parameters we develop a mean-field model and benchmark it with
numerically exact time-dependent density matrix renormalization group
calculations.; Comment: 4+ pages main text...

Link permanente para citações:

## Quantum confinement in Si and Ge nanostructures: Effect of crystallinity

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 09/12/2013

Relevância na Pesquisa

47.94544%

We look at the relationship between the preparation method of Si and Ge
nanostructures (NSs) and the structural, electronic, and optical properties in
terms of quantum confinement (QC). QC in NSs causes a blue shift of the gap
energy with decreasing NS dimension. Directly measuring the effect of QC is
complicated by additional parameters, such as stress, interface and defect
states. In addition, differences in NS preparation lead to differences in the
relevant parameter set. A relatively simple model of QC, using a
`particle-in-a-box'-type perturbation to the effective mass theory, was applied
to Si and Ge quantum wells, wires and dots across a variety of preparation
methods. The choice of the model was made in order to distinguish contributions
that are solely due to the effects of QC, where the only varied experimental
parameter was the crystallinity. It was found that the hole becomes
de-localized in the case of amorphous materials, which leads to stronger
confinement effects. The origin of this result was partly attributed to
differences in the effective mass between the amorphous and crystalline NS as
well as between the electron and hole. Corrections to our QC model take into
account a position dependent effective mass. This term includes an inverse
length scale dependent on the displacement from the origin. Thus...

Link permanente para citações:

## Engineering electronic structure of a 2D topological insulator Bi(111) bilayer on Sb nanofilms by quantum confinement effect

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 07/11/2015

Relevância na Pesquisa

67.64817%

We report on fabrication of a two-dimensional topological insulator-Bi(111)
bilayer on Sb nanofilms via a sequential molecular beam epitaxy (MBE) growth
technique. Our angle-resolved photoemission measurements demonstrate the
evolution of the electronic band structure of the heterostructure as a function
of the film thickness and reveal the existence of a two-dimensional spinful
massless electron gas within the top Bi bilayer. Interestingly, Our
first-principles calculation extrapolating the observed band structure shows
that, by tuning down the thickness of the supporting Sb films into the quantum
dimension regime, a pair of isolated topological edge states emerges in a
partial energy gap at 0.32 eV above the Fermi level as a consequence of quantum
confinement effect. Our results and methodology of fabricating nanoscale
heterostructures establish the Bi bilayer/Sb heterostructure as a platform of
great potential for both ultralow-energy-cost electronics and surface-based
spintronics.

Link permanente para citações:

## Metallic nanograins: spatially nonuniform pairing induced by quantum confinement

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 19/11/2010

Relevância na Pesquisa

48.00677%

It is well-known that the formation of discrete electron levels strongly
influences the pairing in metallic nanograins. Here we focus on another effect
of quantum confinement in superconducting grains that was not studied
previously, i.e., spatially nonuniform pairing. This effect is very significant
when single-electron levels form bunches and/or a kind of shell structure: in
highly symmetric grains the order parameter can exhibit variations with
position by an order of magnitude. Nonuniform pairing is closely related to a
quantum-confinement induced modification of the pairing-interaction matrix
elements and size-dependent pinning of the chemical potential to groups of
degenerate or nearly degenerate levels. For illustration we consider spherical
metallic nanograins. We show that the relevant matrix elements are as a rule
enhanced in the presence of quantum confinement, which favors spatial
variations of the order parameter, compensating the corresponding energy cost.
The size-dependent pinning of the chemical potential further increases the
spatial variation of the pair condensate. The role of nonuniform pairing is
smaller in less symmetric confining geometries and/or in the presence of
disorder. However, it always remains of importance when the energy spacing
between discrete electron levels $\delta$ is approaching the scale of the bulk
gap $\Delta_B$...

Link permanente para citações:

## Effect of Quantum Confinement on Electron Tunneling through a Quantum Dot

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Publicado em 13/03/1997

Relevância na Pesquisa

47.781597%

Employing the Anderson impurity model, we study tunneling properties through
an ideal quantum dot near the conductance minima. Considering the Coulomb
blockade and the quantum confinement on an equal footing, we have obtained
current contributions from various types of tunneling processes; inelastic
cotunneling, elastic cotunneling, and resonant tunneling of thermally activated
electrons. We have found that the inelastic cotunneling is suppressed in the
quantum confinement limit, and thus the conductance near its minima is
determined by the elastic cotunneling at low temperature ($k_BT \ll \Gamma$,
$\Gamma$: dot-reservoir coupling constant), or by the resonant tunneling of
single electrons at high temperature ($k_BT \gg \Gamma$).; Comment: 11 pages Revtex, 2 Postscript figures, To appear in Phys.Rev.B

Link permanente para citações:

## Anisotropic Quantum Confinement Effect and Electric Control of Surface States in Dirac Semimetal Nanostructures

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Relevância na Pesquisa

57.824424%

The recent discovery of Dirac semimetals represents a new achievement in our
fundamental understanding of topological states of matter. Due to their
topological surface states, high mobility, and exotic properties associated
with bulk Dirac points, these new materials have attracted significant
attention and are believed to hold great promise for fabricating novel
topological devices. For nanoscale device applications, effects from finite
size usually play an important role. In this report, we theoretically
investigate the electronic properties of Dirac semimetal nanostructures.
Quantum confinement generally opens a bulk band gap at the Dirac points. We
find that confinement along different directions shows strong
anisotropiceffects. In particular, the gap due to confinement along vertical
c-axis shows a periodic modulation, which is absent for confinement along
horizontal directions. We demonstrate that the topological surface states could
be controlled by lateral electrostatic gating. It is possible to generate
Rashba-like spin splitting for the surface states and to shift them relative to
the confinement-induced bulk gap. These results will not only facilitate our
fundamental understanding of Dirac semimetal nanostructures, but also provide
useful guidance for designing all-electrical topological spintronics devices.; Comment: 23 pages...

Link permanente para citações:

## Vortex states in nanoscale superconducting squares: the influence of quantum confinement

Fonte: Universidade Cornell
Publicador: Universidade Cornell

Tipo: Artigo de Revista Científica

Relevância na Pesquisa

47.853296%

Bogoliubov-de Gennes theory is used to investigate the effect of the size of
a superconducting square on the vortex states in the quantum confinement
regime. When the superconducting coherence length is comparable to the Fermi
wavelength, the shape resonances of the superconducting order parameter have
strong influence on the vortex configuration. Several unconventional vortex
states, including asymmetric ones, giant multi-vortex combinations, and states
comprising giant antivortex, were found as ground states and their stability
was found to be very sensitive on the value of $k_F\xi_0$, the size of the
sample $W$, and the magnetic flux $\Phi$. By increasing the temperature and/or
enlarging the size of the sample, quantum confinement is suppressed and the
conventional mesoscopic vortex states as predicted by the Ginzburg-Laudau (GL)
theory are recovered. However, contrary to the GL results we found that the
states containing symmetry-induced vortex-antivortex pairs are stable over the
whole temperature range. It turns out that the inhomogeneous order parameter
induced by quantum confinement favors vortex-antivortex molecules, as well as
giant vortices with a rich structure in the vortex core - unattainable in the
GL domain.

Link permanente para citações: