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We develop a microscopic theory of spin relaxation of a two-dimensional electron gas in quantum wells with anisotropic electron scattering. Both precessional and collision-dominated regimes of spin dynamics are studied. It is shown that, in…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 A. V. Poshakinskiy , S. A. Tarasenko

The spin-dependent electron transmission through a helical membrane with account of linear spin-orbit interaction has been investigated by numerically solving the Schr\"odinger equation in cylindrical coordinates . It is shown that the spin…

Mesoscale and Nanoscale Physics · Physics 2017-03-07 Guo-Hua Liang , Yong-Long Wang , Hua Jiang , Meng-Yun Lai , Hong-Shi Zong

We investigated the electronic structure of a silicene-like lattice with a line defect under the consideration of spin-orbit coupling. In the bulk energy gap, there are defect related bands corresponding to spin helical states localized…

Mesoscale and Nanoscale Physics · Physics 2016-01-07 Mou Yang , Dong-Hai Chen , Rui-Qiang Wang , Yan-Kui Bai

Spin scalar chiral ordering gives rise to nontrivial topological characters and peculiar transport properties. We here examine how quantum spin fluctuations affect the spin scalar chiral ordering in itinerant electron systems. We take the…

Strongly Correlated Electrons · Physics 2015-06-17 Yutaka Akagi , Masafumi Udagawa , Yukitoshi Motome

Spin-flip Raman scattering of electrons and heavy-holes is studied for resonant excitation of neutral and charged excitons in a CdTe/Cd$_{0.63}$Mg$_{0.37}$Te quantum well. The spin-flip scattering is characterized by its dependence on the…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 J. Debus , D. Dunker , V. F. Sapega , D. R. Yakovlev , G. Karczewski , T. Wojtowicz , J. Kossut , M. Bayer

Spin correlations are carefully investigated in elastic $e^{+}e^{-}$ scattering in QED, for initially \textit{polarized} as well as \textit{unpolarized} particles, with emphasis placed on energy or speed of the underlying particles involved…

Quantum Physics · Physics 2008-07-14 Nattapong Yongram

I present a tractable theory for the Resonant Inelastic X-ray Scattering (RIXS) spectral function of magnons. The low-energy transition operator is written as a product of local spin operators times fundamental x-ray absorption spectra.…

Strongly Correlated Electrons · Physics 2011-07-05 M. W. Haverkort

Divacancy spins in silicon carbide implement qubits with outstanding characteristics and capabilities in an industrial semiconductor host. On the other hand, there are still numerous open questions about the physics of divacancy point…

Mesoscale and Nanoscale Physics · Physics 2021-09-29 Oscar Bulancea Lindvall , Nguyen Tien Son , Igor A. Abrikosov , Viktor Ivády

We investigate the diffusive electron transport in conductors with spatially inhomogeneous magnetic properties taking into account both impurity and normal scattering. It is found that the additional interface resistance that arises due to…

Mesoscale and Nanoscale Physics · Physics 2011-09-06 R. N. Gurzhi , A. N. Kalinenko , A. I. Kopeliovich , P. V. Pyshkin , A. V. Yanovsky

Carbon nanotubes (CNTs) are promising materials exhibiting exceptional strength, electrical conductivity, and thermal properties, making them promising for various technologies. Besides achiral configurations with a zigzag or armchair edge,…

Mesoscale and Nanoscale Physics · Physics 2025-10-09 Börge Göbel , Ingrid Mertig , Samir Lounis

We construct a novel scattering theory to investigate magnetoelectrically induced spin polarizations. Local spin polarizations generated by electric currents passing through a spin-orbit coupled mesoscopic system are measured by an external…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Ph. Jacquod

We investigate the spin Hall effect (SHE) of electrons described by the Dirac equation, which is used as an effective model near the $L$-points in bismuth. By considering short-range nonmagnetic impurities, we calculate the extrinsic as…

Mesoscale and Nanoscale Physics · Physics 2017-08-22 Takaaki Fukazawa , Hiroshi Kohno , Junji Fujimoto

A general mechanism for anesthetic function is not fully understood. Similarly, the mechanism by which xenon, a chemically inert noble gas, can produce anesthetic effects remains ambiguous. However, a previous study reported a surprisingly…

Biological Physics · Physics 2026-05-20 Allan Wang , S. Furkan Ozturk

Topological aspects of the geometry of DNA and similar chiral molecules have received a lot of attention, while the topology of their electronic structure is less explored. Previous experiments have revealed that DNA can efficiently filter…

Mesoscale and Nanoscale Physics · Physics 2022-10-07 Yizhou Liu , Jiewen Xiao , Jahyun Koo , Binghai Yan

A lateral interface connecting two regions with different strengths of the Bychkov-Rashba spin-orbit interaction can be used as a spin polarizer of electrons in two dimensional semiconductor heterostructures. [Khodas \emph{et al.}, Phys.…

Mesoscale and Nanoscale Physics · Physics 2017-05-16 A. Shekhter , M. Khodas , A. M. Finkel'stein

Chiral structures, breaking spatial inversion symmetry, exhibit non-zero chiroptical activity (COA) due to the interaction between their electric and magnetic responses under external electromagnetic fields, an effect that is otherwise…

Mesoscale and Nanoscale Physics · Physics 2023-09-06 Solmar Varela , Rafael Gutierrez , Gianaurelio Cuniberti , Ernesto Medina , Vladimiro Mujica

We report a Cu $K$-edge resonant inelastic x-ray scattering (RIXS) study of spin excitations in the $S$=1/2 antiferromagnetic chain system Sr$_2$CuO$_3$. The spectral weight observed below the charge-transfer gap appears in two-spinon…

Strongly Correlated Electrons · Physics 2025-10-31 Kenji Ishii , Kenji Tsutsui , Takayuki Kawamata , Yoji Koike

The spin dynamics in a broad range of systems can be studied using circularly polarized optical excitation with alternating helicity. The dependence of spin polarization on the frequency of helicity alternation, known as the spin inertia…

Mesoscale and Nanoscale Physics · Physics 2018-09-19 E. A. Zhukov , E. Kirstein , D. S. Smirnov , D. R. Yakovlev , M. M. Glazov , D. Reuter , A. D. Wieck , M. Bayer , A. Greilich

Within an effective Dirac-Weyl theory we solve the scattering problem for massless chiral fermions impinging on a cylindrical time-dependent potential barrier. The set-up we consider can be used to model the electron propagation in a…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 C. Schulz , R. L. Heinisch , H. Fehske

In this work, the dynamics of a self-propelled stochastic particle under the influence of an axisymmetric light field was experimentally studied. The particle under consideration has the main characteristic of carrying a light sensor in an…

Other Condensed Matter · Physics 2022-08-17 GA Patterson
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