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The nonlinear ballistic conductance of three-dimensional quantum microconstrictions, which contain magnetic impurities, is investigated. The nonlinear part of the conductance, which is due to the interaction of electrons with magnetic…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. Namiranian , Yu. A. Kolesnichenko , A. N. Omelyanchouk

We present a detailed theory of transport through line junctions formed by counterpropagating single-branch fractional-quantum-Hall edge channels having different filling factors. Intriguing transport properties are exhibited when strong…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 U. Zuelicke , E. Shimshoni

Magnetic oscillations in strongly correlated insulating systems have garnered interest due to oscillations seemingly originating from the bulk, despite an anticipated gapped spectrum. We use the large-$N$ mean-field theory to study the…

Strongly Correlated Electrons · Physics 2026-02-04 Kaize Wang , Yang Ge , Yashar Komijani

In framework of some extension of the quasi-classical Boltzmann kinetic equation, we show that a moderately strong electric field splits the so-called Lee-Naughton-Lebed's magnetoconductivity maxima in a layered quasi-one-dimensional…

Strongly Correlated Electrons · Physics 2024-09-04 Andrei G. Lebed

Thermodynamic and transport properties of mesoscopic conductors are strongly influenced by the proximity of a superconductor: An interplay between the large scale quantum coherent wave functions in the normal mesoscopic and the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Alexander Altland , B. D. Simons , D. Taras-Semchuk

Neutron scattering studies of single-crystal LiNiPO$_4$ reveal a spontaneous first-order commensurate-incommensurate magnetic phase transition. Short- and long-range incommensurate phases are intermediate between the high temperature…

Strongly Correlated Electrons · Physics 2009-11-10 D. Vaknin , J. L. Zarestky , J. -P. Rivera , H. Schmid

The diagrammatic approach is applied to study quasiparticle transport properties in two-dimensional d-wave superconductors with dilute nonmagnetic impurities both in Born and in unitary limits. It is found that a novel quantum interference…

Superconductivity · Physics 2009-11-07 Y. H. Yang , D. Y. Xing , M. Liu , Y. G. Wang

The interplay among the spectrum, geometry and magnetic field in tubular neighbourhoods of curves in Euclidean spaces is investigated in the limit when the cross section shrinks to a point. Proving a norm resolvent convergence, we derive…

Mathematical Physics · Physics 2015-06-15 David Krejcirik , Nicolas Raymond

In this work, the dynamics of the deformed one-dimensional harmonic oscillator with minimal length uncertainty is examined and the analytical solutions for time evolution of position and momentum operators are presented in which the rough…

Quantum Physics · Physics 2014-05-20 Yue-Yue Chen , Xun-Li Feng , C. H. Oh , Zhi-Zhan Xu

The tunneling splitting in biaxial ferrimagnetic particles at excited states with an explicit calculation of the prefactor of exponent is obtained in terms of periodic instantons which are responsible for tunneling at excited states and is…

Condensed Matter · Physics 2019-08-17 Yi-Hang Nie , Yan-Hong Jin , J. -Q Liang , F. -C Pu

We study magneto-elastic oscillations of highly magnetized neutron stars (magnetars) which have been proposed as an explanation for the quasi-periodic oscillations (QPOs) appearing in the decaying tail of the giant flares of soft gamma-ray…

Solar and Stellar Astrophysics · Physics 2015-06-11 Michael Gabler , Pablo Cerdá-Durán , José A. Font , Ewald Müller , Nikolaos Stergioulas

We present fully quantum-mechanical magnetotransport calculations for short-period lateral superlattices with one-dimensional electrostatic modulation. A non-perturbative treatment of both magnetic field and modulation potential proves to…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 M. Langenbuch , M. Suhrke , U. Roessler

In quasi-one-dimensional conductors, the conductivity in both one-dimensional axis and interchain direction shows peaks when magnetic field is tilted at the magic angles in the plane perpendicular to the conducting chain. Although there are…

Strongly Correlated Electrons · Physics 2007-05-23 Yasumasa Hasegawa , Hirono Kaneyasu , Keita Kishigi

It is known that the ground states of organic conductors have a diversity reflecting the spatial arrangement of the constituent molecules within the unit cell. A systematic theoretical search for the unifying view behind such possible…

Strongly Correlated Electrons · Physics 2009-10-31 Hidetoshi Fukuyama , Hitoshi Seo , Hiori Kino

Angular magnetoresistance oscillations (AMRO) were originally discovered in organic conductors and then found in many other layered metals. It should be possible to observe AMRO to semiconducting bilayers as well. Here we present an…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Victor M. Yakovenko , Benjamin K. Cooper

Metals hosting gradually varying spatial magnetic textures are attracting attention as a new class of inductor. Under the application of an alternating current, the spin-transfer-torque effect induces oscillating dynamics of the magnetic…

Materials Science · Physics 2023-11-27 Soju Furuta , Wataru Koshibae , Fumitaka Kagawa

We study theoretically the role of quenched magnetic disorder at the surface of a topological insulator by numerical simulation and scaling analysis. It is found that all the surface states are localized while the transverse conductivity is…

Mesoscale and Nanoscale Physics · Physics 2011-04-19 Kentaro Nomura , Naoto Nagaosa

In this study we explain the role of applied magnetic field in inelastic conduction properties of a Quantum Dot coupled with an oscillator . In the presence of strong applied magnetic field coulomb blockade effects become weak due to…

Mesoscale and Nanoscale Physics · Physics 2011-10-04 M. Imran , B. Tariq , M. Tahir , K. Sabeeh

We study Anderson localization in disordered helical conductors that are obtained from one-dimensional conductors with spin-orbit interaction and a magnetic field, or from equivalent systems. We call such conductors "quasi-helical" because…

Mesoscale and Nanoscale Physics · Physics 2013-03-05 Bernd Braunecker , Anders Ström , G. I. Japaridze

The surprising discovery of high-$T_c$ superconductivity in iron-based compounds has prompted an intensive investigation on the role of interaction and magnetism in the these materials. Based on the general features of multi-bands and…

Superconductivity · Physics 2013-11-27 Yi-Zhuang You , Zheng-Yu Weng