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相关论文: Theory of Tunneling between Two-Dimensional Electr…

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In this review, we present recent theoretical developments on spin transport phenomena probed by ferromagnetic resonance (FMR) modulation in two-dimensional systems coupled to magnetic materials. We first address FMR linewidth enhancements…

介观与纳米尺度物理 · 物理学 2025-10-28 Yuya Ominato , Masaki Yama , Ai Yamakage , Mamoru Matsuo , Takeo Kato

Interband quantum tunneling of electrons in semiconductors is of intense recent interest as the underlying transport mechanism in tunneling field-effect transistors. Such transistors can potentially perform electronic switching with lower…

材料科学 · 物理学 2015-06-15 Nan Ma , Debdeep Jena

Tunneling between two-dimensional electron layers with mutually correlated disorder potentials is studied theoretically. Due to this correlation, the diffusive eigenstates in different layers are almost orthogonal to each other. As a…

介观与纳米尺度物理 · 物理学 2007-05-23 V. A. Zyuzin , E. G. Mishchenko , M. E. Raikh

A theory of the proximity effects of the exchange splitting in a ferromagnetic metal on a two dimensional electron gas (2DEG) in a semiconductor is presented. The resulting spin-dependent energy and lifetime in the 2DEG create a marked…

介观与纳米尺度物理 · 物理学 2009-11-10 J. P. McGuire , C. Ciuti , L. J. Sham

Theoretical research on electronic properties in mesoscopic condensed matter systems has focused primarily on the electron charge freedom degrees, while its corresponding spin freedom degrees have not yet received the same attention.…

介观与纳米尺度物理 · 物理学 2016-08-14 H. Paredes Gutíerrez , S. T. Pérez-Merchancano , G. E. Marques

An influence of spin-orbit interaction on the tunneling between two 2D electron layers is considered. Particular attention is addressed to the relation between the contribution of Rashba and Dresselhaus types. It is shown that without…

其他凝聚态物理 · 物理学 2009-11-13 I. V. Rozhansky , N. S. Averkiev

We calculate adiabatic charge and spin pumping through a serial double quantum dot with strong Coulomb interaction, coupled to normal metal or ferromagnetic contacts. We use a real-time diagrammatic approach in the regime of weak coupling…

介观与纳米尺度物理 · 物理学 2010-12-13 Roman-Pascal Riwar , Janine Splettstoesser

Non-equilibrium two-parameter pumping transport through graphene ribbons, attached to reservoirs is described. A tight-binding model is solved using Keldysh formalism, and the crossover between adiabatic and non-adiabatic regimes is…

介观与纳米尺度物理 · 物理学 2012-03-20 Tejinder Kaur , Liliana Arrachea , Nancy Sandler

We present a theoretical study of momentum-resolved tunneling between parallel two-dimensional conductors whose charge carriers have a (pseudo-)spin-1/2 degree of freedom that is strongly coupled to their linear orbital momentum. Specific…

介观与纳米尺度物理 · 物理学 2013-12-12 L. Pratley , U. Zuelicke

We propose cotunneling as the microscopic mechanism that makes possible inelastic electron spectroscopy of magnetic atoms in surfaces for a wide range of systems, including single magnetic adatoms, molecules and molecular stacks. We…

介观与纳米尺度物理 · 物理学 2011-08-26 F. Delgado , J. Fernández-Rossier

A domain wall (DW) which moves parallel to a magnetically compensated interface between an antiferromagnetic insulator (AFMI) and a two-dimensional (2D) metal can pump spin polarization into the metal. It is assumed that localized spins of…

介观与纳米尺度物理 · 物理学 2024-01-30 A. G. Mal'shukov

The competition of magnetic exchange interactions and tunneling underlies many complex quantum phenomena observed in real materials. We study non-equilibrium magnetization dynamics in an extended 2D system by loading effective spin-1/2…

量子气体 · 物理学 2016-04-13 R. C. Brown , R. Wyllie , S. B. Koller , E. A. Goldschmidt , M. Foss-Feig , J. V. Porto

We study the quantum tunneling of non-relativistic electrons for two dimensional condensed matter systems. We employ the Levy-Leblond equation (which is the analogue of the Dirac equation for non-relativistic fermions) and show that the…

量子物理 · 物理学 2017-05-31 Muhammad Adeel Ajaib

In this paper we develop the theory for 2D-to-2D tunneling spectroscopy aided by magnetic or quantum-order excitations, and apply it to the description of van-der-Waals heterostructures of graphene/ultrathin $\alpha-{\rm RuCl}_3$. We study…

介观与纳米尺度物理 · 物理学 2025-07-14 Matteo Carrega , Ivan J. Vera-Marun , Alessandro Principi

For a non-superconducting system, the electronic tunneling current through an insulating barrier is calculated, including interaction effects. The exact Hamiltonian of the full system is projected onto the subspaces of the "left" and…

介观与纳米尺度物理 · 物理学 2010-07-09 Kelly R. Patton

Recent demonstrations of magnetic ordering and spin transport in two-dimensional heterostructures have opened research venues in these material systems. In order to control and enhance the related physical phenomena, quantitative…

介观与纳米尺度物理 · 物理学 2020-07-01 Jonathan J. Heath , Marcio Costa , Marco Buongiorno-Nardelli , Marcelo A. Kuroda

Interactions in one-dimensional (1D) electron systems are expected to cause a dynamical separation of electronic spin and charge degrees of freedom. A promising system for experimental observation of this non-Fermi-liquid effect consists of…

介观与纳米尺度物理 · 物理学 2009-11-07 U. Zuelicke , M. Governale

We consider the phenomenon of quantum charge pumping of electrons across a superconducting double barrier structure in graphene in the adiabatic limit. In this geometry, quantum charge pumping can be achieved by modulating the amplitudes…

介观与纳米尺度物理 · 物理学 2015-05-27 Arijit Kundu , Sumathi Rao , Arijit Saha

Electron transport phenomena in disordered electron systems with spin-orbit coupling in two dimensions and below are studied numerically. The scaling hypothesis is checked by analyzing the scaling of the quasi-1D localization length. A…

介观与纳米尺度物理 · 物理学 2007-05-23 Yoichi Asada , Keith Slevin , Tomi Ohtsuki

In recent years inelastic spin-flip spectroscopy using a lowtemperature scanning tunneling microscope has been a very successful tool for studying not only individual spins but also complex coupled systems. When these systems interact with…

介观与纳米尺度物理 · 物理学 2015-10-21 Markus Ternes
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