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Spin selective transport is usually associated with spin-orbit interactions. However, these interactions are invariant under time-reversal symmetry, and the Onsager relations and Bardarson's theorem imply that such interactions cannot yield…

介观与纳米尺度物理 · 物理学 2025-04-07 Amnon Aharony , Ora Entin-Wohlman

Van der Waals magnetic materials are currently of great interest as materials for applications in future ultrathin nanoelectronics and nanospintronics. Due to weak coupling between individual monolayers, these materials can be easily…

介观与纳米尺度物理 · 物理学 2023-11-21 Wojciech Rudziński , Józef Barnaś , Anna Dyrdał

The presence of low-symmetry impurities or defect complexes in the zinc-blende direct-gap semiconductors (e.g. interstitials, DX-centers) results in a novel spin-orbit term in the effective Hamiltonian for the conduction band. The new…

无序系统与神经网络 · 物理学 2015-03-19 Oleg Chalaev , G. Vignale , Michael E. Flatté

The ability to control the spin-orbit interaction of light in optical microresonators is of fundamental importance for future photonics. Organic microcrystals, due to their giant optical anisotropy, play a crucial role in spin-optics and…

光学 · 物理学 2022-01-25 Jiahuan Ren , Qing Liao , Xuekai Ma , Stefan Schumacher , Jiannian Yao , Hongbing Fu

Altermagnets, magnetic materials with zero magnetization and spin-split band structure, have gained tremendous attention recently for their rich physics and potential applications. Here, we report on a microscopic tight-binding model that…

材料科学 · 物理学 2024-11-01 Marc Vila , Veronika Sunko , Joel E. Moore

We investigate the impact of impurity scattering on superconductivity in an anisotropic multi-orbital model with spin-orbit coupling which describes the electron fluid at two-dimensional oxide interfaces. As the pairing mechanism is under…

超导电性 · 物理学 2015-08-05 Mathias S. Scheurer , Mareike Hoyer , Jörg Schmalian

The entanglement of the spin and orbital degrees of freedom through the spin-orbit coupling has been actively studied in condensed matter physics. In several iridium-oxide systems, the spin-orbital entangled state, identified by the…

强关联电子 · 物理学 2014-06-10 Heung-Sik Kim , Jino Im , Myung Joon Han , Hosub Jin

We develop an effective tight-binding Hamiltonian for spin-orbit (SO) interaction in bent carbon nanotubes (CNT) for the electrons forming the $\pi$ bonds between the nearest neighbor atoms. We account for the bend of the CNT and the…

介观与纳米尺度物理 · 物理学 2015-10-30 E. N. Osika , B. Szafran

We present an exact theoretical study of the effect of the spin-orbit (SO) interaction on the band structure and low temperature transport in long quasi-one-dimensional electron systems patterned in two-dimensional electron gases in zero…

介观与纳米尺度物理 · 物理学 2009-10-31 A. V. Moroz , C. H. W. Barnes

The interplay of electron-electron interactions and spin-orbit coupling leads to a new contribution to the homogeneous optical conductivity of the electron liquid. The latter is known to be insensitive to many-body effects for a…

介观与纳米尺度物理 · 物理学 2007-05-23 Abdel-Khalek Farid , Eugene Mishchenko

The physics of quantum dots is succinctly depicted by the {\it Universal Hamiltonian}, where only zero mode interactions are included. In the case where the latter involve charging and isotropic spin-exchange terms, this would lead to a…

介观与纳米尺度物理 · 物理学 2011-08-29 Boaz Nissan-Cohen , Yuval Gefen , Mikhail N. Kiselev , Igor V. Lerner

We theoretically investigate the deflection-induced coupling of an electron spin to vibrational motion due to spin-orbit coupling in suspended carbon nanotube quantum dots. Our estimates indicate that, with current capabilities, a quantum…

介观与纳米尺度物理 · 物理学 2012-06-05 András Pályi , P. R. Struck , Mark Rudner , Karsten Flensberg , Guido Burkard

We review the theoretical description of spin-orbit scattering and electron spin resonance in carbon nanotubes. Particular emphasis is laid on the effects of electron-electron interactions. The spin-orbit coupling is derived, and the…

强关联电子 · 物理学 2012-09-27 A. De Martino , R. Egger , F. Murphy-Armando , K. Hallberg

Using resonant x-ray diffraction, we observe an easy c-axis collinear antiferromagnetic structure for the bilayer Sr$_3$Ir$_2$O$_7$, a significant contrast to the single layer Sr$_2$IrO$_4$ with in-plane canted moments. Based on a…

强关联电子 · 物理学 2012-12-11 J. W. Kim , Y. Choi , Jungho Kim , J. F. Mitchell , G. Jackeli , M. Daghofer , J. van den Brink , G. Khaliullin , B. J. Kim

We discuss a general form of the exchange energy for a homogeneous system of interacting electrons in two spatial dimensions which is particularly suited in the presence of a generic spin-orbit interaction. The theory is best formulated in…

介观与纳米尺度物理 · 物理学 2009-11-13 S. Chesi , G. F. Giuliani

We consider spin effects related to the random spin-orbit interaction in graphene. Such a random interaction can result from the presence of ripples and/or other inhomogeneities at the graphene surface. We show that the random spin-orbit…

介观与纳米尺度物理 · 物理学 2015-05-20 V. K. Dugaev , E. Ya. Sherman , J. Barnas

We study magnetic excitations in vanadium spinel oxides AV$_2$O$_4$ (A=Zn, Mg, Cd) using two models: first one is a superexchange model for vanadium S=1 spins, second one includes in addition spin-orbit coupling, and crystal anisotropy. We…

强关联电子 · 物理学 2014-09-03 N. B. Perkins , O. Sikora

We report the coherent coupling of two electron spins at a distance via virtual microwave photons. Each spin is trapped in a silicon double quantum dot at either end of a superconducting resonator, achieving spin-photon couplings up to…

介观与纳米尺度物理 · 物理学 2022-05-13 Patrick Harvey-Collard , Jurgen Dijkema , Guoji Zheng , Amir Sammak , Giordano Scappucci , Lieven M. K. Vandersypen

Iridates abound with interesting magnetic behaviours because of their strong spin-orbit coupling. Sr$_3$NiIrO$_6$ brings together the spin-orbital entanglement of the Ir$^{4+}$ ion with a 3$d$ Ni cation and a one-dimensional crystal…

材料科学 · 物理学 2018-10-19 Turan Birol , Kristjan Haule , David Vanderbilt

Stabilization of unusual spin-orbit driven magnetic orderings are achieved for chains of Mn atoms deposited on a W(110) substrate. First-principles electronic structure calculations show that the ground state spin configuration is…