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Topological insulators have been successfully identified by spin-resolved photoemission but the spin polarization remained low (~20%). We show for Bi2Te3 that the in-gap surface state is much closer to full spin polarization with measured…

介观与纳米尺度物理 · 物理学 2012-05-28 M. R. Scholz , J. Sánchez-Barriga , D. Marchenko , A. Varykhalov , A. Volykhov , L. V. Yashina , O. Rader

We investigate numerically the spin properties of electrons in flakes made of materials described by the Dirac equation, at the presence of intrinsic spin-orbit-coupling(SOC). We show that electrons flowing along the borders of flakes via…

介观与纳米尺度物理 · 物理学 2016-02-17 Ioannis Kleftogiannis , Ilias Amanatidis

We have synthesized 20 nm thick films of tetragonally strained interstitial Fe-Co-B alloys epitaxially grown on Au55Cu45 buffer layer. The strained axis is perpendicular to the film plane and the corresponding lattice constant c is enlarged…

We investigate the superfluidity of attractive Fermi gas in a square optical lattice with spin-orbit coupling (SOC). We show that the system displays a variety of new filling-dependent features. At half filling, a quantum phase transition…

量子气体 · 物理学 2015-06-15 Q. Sun , G. -B. Zhu , W. -M. Liu , A. -C. Ji

Spin-orbit coupling (SOC) can provide essential tools to manipulate electron spins in two-dimensional materials like graphene, which is of great interest for both fundamental physics and spintronics application. In this paper, we report the…

介观与纳米尺度物理 · 物理学 2021-10-12 Shimin Cao , Chuanwu Cao , Shibing Tian , Jian-Hao Chen

The effect of an atomically sharp impenetrable interface on the spin splitting of the spectrum of two-dimensional electrons in heterostructures based on (001) III-V compounds has been analyzed. To this end, the single band Hamiltonian…

介观与纳米尺度物理 · 物理学 2014-10-10 Zh. A. Devizorova , V. A. Volkov

The global spin polarization of hadrons in heavy ion collisions has been measured in STAR (the Solenoidal Tracker At Relativistic heavy ion collider) experiments, which opens up a new window in the study of the hottest, least viscous and…

核理论 · 物理学 2022-10-11 Jian Deng , Qun Wang , Hong Zhang

We measure the spin-charge interconversion by the spin Hall effect in ferromagnetic/Pt nanodevices. The extracted effective spin Hall angles (SHAs) of Pt evolve drastically with the ferromagnetic (FM) materials (CoFe, Co, and NiFe), when…

介观与纳米尺度物理 · 物理学 2021-05-26 Van Tuong Pham , Maxen Cosset-Cheneau , Ariel Brenac , Olivier Boulle , Alain Marty , Jean-Philippe Attané , Laurent Vila

It has recently been shown that the SOiCI approach [J. Phys.: Condens. Matter 34 (2022) 224007], in conjunction with the spin-separated exact two-component relativistic Hamiltonian, can provide very accurate fine structures of systems…

化学物理 · 物理学 2023-07-18 Yang Guo , Ning Zhang , Wenjian Liu

In the spectral density of Cr(001) surfaces a sharp resonance close to the Fermi level is observed in both experiment and theory. For the physical origin of this peak two mechanisms were proposed. A single particle dz2 surface state…

强关联电子 · 物理学 2018-01-11 L. Peters , D. Jacob , M. Karolak , A. I. Lichtenstein , M. I. Katsnelson

In a magnetic multilayer, the spin transfer between localized magnetization dynamics and itinerant conduction spin arises from the interaction between a normal metal and an adjacent ferromagnetic layer. The spin-mixing conductance then…

介观与纳米尺度物理 · 物理学 2022-07-04 Adam B. Cahaya , Rico M. Sitorus , Anugrah Azhar , Ahmad R. T. Nugraha , Muhammad Aziz Majidi

One of the long standing problems in quantum chemistry had been the inability to exploit full spatial and spin symmetry of an electronic Hamiltonian belonging to a non-Abelian point group. Here we present a general technique which can…

原子与分子团簇 · 物理学 2012-06-07 Shaon Sahoo , S. Ramasesha

A number of recent experiments indicate that the iron-chalcogenide FeSe provides the long-sought possibility to study bulk superconductivity in the cross-over regime between the weakly coupled Bardeen--Cooper--Schrieffer (BCS) pairing and…

The Kondo insulator compound SmB6 has emerged as a strong candidate for the realization of a topologically nontrivial state in a strongly correlated system, a topological Kondo insulator, which can be a novel platform for investigating the…

强关联电子 · 物理学 2019-07-03 Jehyun Kim , Chaun Jang , Xiangfeng Wang , Johnpierre Paglione , Seokmin Hong , Dohun Kim

We derive a model for the highest occupied molecular orbital band of a C60 crystal which includes on-site electron-electron interactions. The form of the interactions are based on the icosahedral symmetry of the C60 molecule together with a…

超导电性 · 物理学 2009-11-07 M. Granath , S. Ostlund

We study the spin squeezing in a spin-1/2 Bose-Einstein condensates (BEC) with Raman induced spin-orbit coupling (SOC). Under the condition of two-photon resonance and weak Raman coupling strength, the system possesses two degenerate ground…

量子气体 · 物理学 2020-08-26 Li Chen , Yunbo Zhang , Han Pu

Finding stimuli capable of driving an imbalance of spin-polarised electrons within a solid is the central challenge in the development of spintronic devices. However, without the aid of magnetism, routes towards this goal are highly…

Spin-polarized scanning tunneling microscopy is used to investigate the magnetic state of the Fe monolayer on Re(0001). Two coexisting atomic-scale non-collinear spin textures are observed with a sharp transition between them on the order…

Oxide heterostructures with polar films display special electronic properties, such as the electronic reconstruction at their internal interfaces with the formation of two-dimensional metallic states. Moreover, the electrical field from the…

介观与纳米尺度物理 · 物理学 2015-02-17 Kevin Steffen , Florian Loder , Thilo Kopp

We present a systematic theoretical study of the BCS-BEC crossover problem in three-dimensional atomic Fermi gases at zero temperature with a spherical spin-orbit coupling which can be generated by a synthetic non-Abelian gauge field…

量子气体 · 物理学 2012-07-13 Lianyi He , Xu-Guang Huang