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We present semiclassical and quantum mechanical results for the effects of a strong magnetic field in Quantum Wires in the presence of Rashba Spin Orbit coupling. Analytical and numerical results show how the perturbation acts in the…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 S. Bellucci , P. Onorato

We investigate spin transport in InSb/InAlSb heterostructure using the Monte Carlo approach, generalized by including density matrix description of spin for taking spin dynamics into account. In addition to the dominant Dyakonov-Perel (DP)…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Akashdeep Kamra , Bahniman Ghosh , Tarun K. Ghosh

We investigate the spin-dependent transport properties of a two-dimensional electron gas formed at oxides' interface in the presence of a magnetic field. We consider several scenarios for the oxides' properties, including oxides with…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Chenglong Jia , Jamal Berakdar

Semiconductor Bi$_2$O$_2$Se nanolayers of high crystal quality have been realized via epitaxial growth. These two-dimensional (2D) materials possess excellent electron transport properties with potential application in nanoelectronics. It…

Mesoscale and Nanoscale Physics · Physics 2018-02-12 Mengmeng Meng , Shaoyun Huang , Congwei Tan , Jinxiong Wu , Yumei Jing , Hailin Peng , H. Q. Xu

Here we report on fabrication and low temperature magnetotransport measurements of quantum point contacts patterned from a novel two-dimensional electron system - CdTe/CdMgTe modulation doped heterostructure. From the temperature and bias…

Mesoscale and Nanoscale Physics · Physics 2013-05-30 M. Czapkiewicz , V. Kolkovsky , P. Nowicki , M. Wiater , T. Wojciechowski , T. Wojtowicz , J. Wróbel

We theoretically study the electron transport through a magnetic point contact (PC) with special attention to the effect of an atomic scale domain wall (DW). The spin precession of a conduction electron is forbidden in such an atomic scale…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Hiroshi Imamura , Nobuhiko Kobayashi , Saburo Takahashi , Sadamichi Maekawa

We study the nonequilibrium transport through a multichannel Kondo quantum dot in the presence of a magnetic field. We use the exact solution of the two-loop renormalization group equation to derive analytical results for the g factor, the…

Strongly Correlated Electrons · Physics 2012-04-18 Christoph B. M. Hörig , Dirk Schuricht

We evaluate the Lande g factor of electrons in quantum dots (QDs) fabricated from GaAs quantum well (QW) structures of different well width. We first determine the Lande electron g factor of the QWs through resistive detection of electron…

Mesoscale and Nanoscale Physics · Physics 2014-12-22 G. Allison , T. Fujita , K. Morimoto , S. Teraoka , M. Larsson , H. Kiyama , A. Oiwa , S. Haffouz , D. G. Austing , A. Ludwig , A. D. Wieck , S. Tarucha

We investigate transport through a single-level quantum dot coupled to noncollinearly magnetized ferromagnets in the presence of localized spins in either the tunnel barrier or on the quantum dot. For a spin embedded in the tunnel barrier,…

Mesoscale and Nanoscale Physics · Physics 2010-12-24 Björn Sothmann , Jürgen König

This study explores the mechanisms of spin-orbit torque (SOT) switching in ferromagnetic semiconductors (FMS) with perpendicular magnetic anisotropy (PMA), emphasizing the impact of symmetry-breaking. Using micromagnetic simulations based…

Mesoscale and Nanoscale Physics · Physics 2025-02-25 Apu Kumar Jana , Sanghoon Lee

Many modern spin-based devices rely on the spin-orbit interaction, which is highly sensitive to the host semiconductor heterostructure and varies substantially depending on crystal direction, crystal asymmetry (Dresselhaus), and quantum…

Mesoscale and Nanoscale Physics · Physics 2022-11-08 Karina Hudson , Ashwin Srinivasan , Dmitry Miserev , Qingwen Wang , Oleh Klochan , Oleg Sushkov , Ian Farrer , David Ritchie , Alex Hamilton

We demonstrate that in a single molecule magnet (SMM) strongly coupled to electrodes the Kondo effect involves all magnetic excitations. This Kondo effect is induced by the quantum tunneling of the magnetic moment (QTM). Importantly, the…

Strongly Correlated Electrons · Physics 2009-11-11 C. Romeike , M. R. Wegewijs , W. Hofstetter , H. Schoeller

Motivated by recent progress in employing two key classes of two-dimensional materials-topological insulators and transition-metal dichalcogenides (TMDCs)-as spin sources for generating spin-orbit torque (SOT), we investigate…

Mesoscale and Nanoscale Physics · Physics 2025-08-01 Leyla Majidi , Azadeh Faridi , Reza Asgari

We evaluate the transport coefficients of a two-dimensional electron gas (2DEG) in the presence of a perpendicular magnetic field and of the spin-orbit interaction (SOI) described only by the Rashba term. The SOI mixes the spin-up and…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 X. F. Wang , P. Vasilopoulos

We study proximity-induced spin-orbit coupling (SOC) in bilayer graphene/few-layer WSe2 heterostructure devices. Contact mode atomic force microscopy (AFM) cleaning yields ultra-clean interfaces and high-mobility devices. In a perpendicular…

Mesoscale and Nanoscale Physics · Physics 2019-09-25 Dongying Wang , Shi Che , Guixin Cao , Rui Lyu , Kenji Watanabe , Takashi Taniguchi , Chun Ning Lau , Marc Bockrath

The description of interacting many-electron systems in external magnetic fields is considered in the framework of the optimized effective potential method extended to current-spin-density functional theory. As a case study, a…

Materials Science · Physics 2011-01-14 N. Helbig , S. Kurth , S. Pittalis , E. Räsänen , E. K. U. Gross

The superconducting transition temperature, Tc, of the SrTiO3/LaAlO3 interface was varied by the electric field effect. The anisotropy of the upper critical field and the normal state magneto-transport were studied as a function of gate…

Strongly Correlated Electrons · Physics 2015-05-14 M. Ben Shalom , M. Sachs , D. Rakhmilevitch , A. Palevski , Y. Dagan

We discuss low-temperature properties of magnets with integer spin and large single-ion easy-plane anisotropy $D$ in transverse magnetic field $h$. Considering the exchange interaction between spins as a perturbation and using the diagram…

Strongly Correlated Electrons · Physics 2011-12-30 A. V. Sizanov , A. V. Syromyatnikov

Organic charge transfer salts show a variety of complex phases ranging from antiferromagnetic long-range order, spin liquid, bad metal or even superconductivity. A powerful method to investigate magnetism is spin-polarized inelastic neutron…

Materials Science · Physics 2014-07-29 Francesc Salvat-Pujol , Harald O. Jeschke , Roser Valenti

Spin-polarized transport through a quantum dot strongly coupled to ferromagnetic electrodes with non-collinear magnetic moments is analyzed theoretically in terms of the non-equilibrium Green function formalism. Electrons in the dot are…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 R. Swirkowicz , M. Wilczynski , J. Barnas