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We investigate polarization observables in hyperon-nucleon scattering by decomposing scattering amplitudes into spin-space tensors, where each component describes scattering by corresponding spin-dependent interactions, so that…

Nuclear Theory · Physics 2009-11-10 S. Ishikawa , M. Tanifuji , Y. Iseri , Y. Yamamoto

We investigate the electrostatic interactions between two charged anisotropic conductors using a combination of asymptotic and numerical methods. For widely separated particles, we employ the method of reflections to analyze the…

Soft Condensed Matter · Physics 2025-01-13 Harshit Joshi , Anubhab Roy

Spin polarization induced by a temperature gradient (heat-current) in a magnetized two-dimensional electron gas (2DEG) with Rashba spin-orbit interaction is considered theoretically within the linear response theory. Using the Matsubara…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 A. Dyrdal , J. Barnas , V. K. Dugaev , J. Berakdar

By associating a spin-orbit interaction with a non-Abelian gauge potential, we theoretically present a spin polarization in a quite general form using an effective Yang-Mills field and a usual electromagnetic field. In this gauge invariant…

Mesoscale and Nanoscale Physics · Physics 2013-09-18 Akihito Takeuchi , Naoto Nagaosa

A proposal for an electron-beam device that can act as an efficient spin-polarization filter has been recently put forward [E. Karimi et al., Phys. Rev. Lett. 108, 044801 (2012)]. It is based on combining the recently developed diffraction…

Quantum Physics · Physics 2015-06-12 Vincenzo Grillo , Lorenzo Marrucci , Ebrahim Karimi , Riccardo Zanella , Enrico Santamato

We characterize spin-polarized lasing in a two-dimensional photonic lattice fabricated from a GaAs/InGaAs semiconductor microcavity sample. The lattice is defined by a staggered arrangement of rounded rectangular micrometric mesas that…

We show that the electron spin polarization generated by an electrical current may have its direction controlled and magnitude amplified by periodic optical excitation. The electrical and optical spin control methods were combined and…

Mesoscale and Nanoscale Physics · Physics 2014-07-17 Felix G. G. Hernandez , Gennady M. Gusev , Askhat K. Bakarov

The interference of the directly emitted photoelectron wave and the wave scattered coherently by neighboring atoms gives holographic fringes in the photoelectron emission intensity $I(\hat{\bf R})$. In the electron emission holography…

Condensed Matter · Physics 2016-08-31 Eddy Timmermans , G. T. Trammell , J. P. Hannon

We generate experimentally a honeycomb refractive index pattern in an atomic vapor cell using electromagnetically-induced transparency. We study experimentally and theoretically the propagation of polarized light beams in such "photonic…

Mesoscale and Nanoscale Physics · Physics 2020-02-13 Zhaoyang Zhang , Shun Liang , Feng Li , Shaohuan Ning , Yiming Li , G. Malpuech , Yanpeng Zhang , Min Xiao , D. Solnyshkov

We demonstrate a mesoscopic spin polarizer/analyzer system that allows the spin polarization of current from a quantum point contact in an in-plane magnetic field to be measured. A transverse focusing geometry is used to couple current from…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 R. M. Potok , J. A. Folk , C. M. Marcus , V. Umansky

High resolution spin- and angle-resolved photoemission spectroscopy (spin-ARPES) was performed on the three-dimensional topological insulator Bi$_2$Se$_3$ using a recently developed high-efficiency spectrometer. The topological surface…

We present Maxwell equations with source terms for the electromagnetic field interacting with a moving electron in a spin-orbit coupled semiconductor heterostructure. We start with the eight--band ${\bm k}{\bm p}$ model and derive the…

Materials Science · Physics 2009-11-13 A. V. Rodina , A. Yu. Alekseev

Spin- and angle-resolved photoemission spectroscopy is used to reveal that a large spin polarization is observable in the bulk centrosymmetric transition metal dichalcogenide MoS2. It is found that the measured spin polarization can be…

It has been predicted recently that an electron beam can be polarized when it flows adiabatically through a quantum point contact in a system with spin-orbit interaction. Here, we show that a simple transverse electron focusing setup can be…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Reynoso , Gonzalo Usaj , C. A. Balseiro

A comprehensive understanding of spin-polarized photoemission is crucial for accessing the electronic structure of spin-orbit coupled materials. Yet, the impact of the final state in the photoemission process on the photoelectron spin has…

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…

Materials Science · Physics 2022-09-08 Oliver J. Clark , Oliver Dowinton , Mohammad Saeed Bahramy , Jaime Sánchez-Barriga

We introduce a novel, non-invasive imaging technique based on spin-dependent off-axis holography (SOAH) for spin-1 Bose-Einstein condensates (BECs). Utilizing a dual reference beam strategy, this method records two orthogonal circular…

Quantum Gases · Physics 2024-05-17 Nejc Blaznik , Jasper Smits , Marc Duran Gutierrez , Peter van der Straten

The spin Hall effect of light, a spin-dependent transverse splitting of light at an optical interface, is intrinsically an incident-polarization-sensitive phenomenon. Recently, an approach to eliminate the polarization dependence by…

Optics · Physics 2021-09-10 Minkyung Kim , Dasol Lee , Junsuk Rho

We show that the joint effect of spin-orbit and magnetic fields leads to a spin polarization perpendicular to the plane of a two-dimensional electron system with Rashba spin-orbit coupling and in-plane parallel dc magnetic and electric…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Hans-Andreas Engel , Emmanuel I. Rashba , Bertrand I. Halperin

We consider a two-dimensional structure with spin-orbit-related splitting of the electron (hole) spectrum and calculate the edge spin density which appears due to the intrinsic mechanism of spin-orbit interaction in the presence of a charge…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Alexander Khaetskii
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