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We devise an approach to measure the polarization of nuclear spins via conductance measurements. Specifically, we study the combined effect of external magnetic field, nuclear spin polarization, and Rashba spin-orbit interaction on the…

Mesoscale and Nanoscale Physics · Physics 2010-10-12 James A. Nesteroff , Yuriy V. Pershin , Vladimir Privman

We clarify that the antiferromagnetic order in the distorted tetrahedral quasi-one dimensional spin system induces electric polarizations. In this system, the effects of the low dimensionality and the magnetic frustration are expected to…

The creation of free excitons by absorption of circularly polarized photons, and their subsequent fast capture by donors, is at the origin of the spin polarization of donor-bound electrons. The sign of the electronic spin polarization at…

Other Condensed Matter · Physics 2008-01-10 B. Eble , C. Testelin , F. Bernardot , M. Chamarro , G. Karczewski

We investigate coherent transport through open lateral quantum dots using recursive Green's function technique, incorporating exchange-correlation effects within local spin-density approximation (LSDA). At low electron densities the current…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Evaldsson , I. V. Zozoulenko

We demonstrate bias control of the hyperfine coupling between a single electron in an InAs quantum dot and the surrounding nuclear spins monitored through the positively charged exciton X+ emission. In applied longitudinal magnetic fields…

Mesoscale and Nanoscale Physics · Physics 2013-08-19 J. Nilsson , L. Bouet , A. J. Bennett , T. Amand , R. M. Stevenson , I. Farrer , D. A. Ritchie , S. Kunz , X. Marie , A. J. Shields , B. Urbaszek

We study a model for polaron-like charge transport mechanism along DNA molecules with emphasis on the impact of parametrical and structural disorder. Our model Hamiltonian takes into account the coupling of the charge carrier to two…

Pattern Formation and Solitons · Physics 2015-06-26 D. Hennig , J. F. R. Archilla , J. Agarwal

Optical orientation is a highly efficient tool for the generation of nonequilibrium spin polarization in semiconductors. Combined with spin-polarized transport it offers new functionalities for conventional electronic devices, such as pn…

Other Condensed Matter · Physics 2008-11-04 Jaroslav Fabian , Igor Zutic

In systems with spin-momentum locking, such as the surface states of three-dimensional topological insulators, a charge current is spin-polarized and spin-flip interactions between electron and nuclear spins can transfer this polarization…

Mesoscale and Nanoscale Physics · Physics 2025-06-18 Sofie Kölling , İnanç Adagideli , Alexander Brinkman

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

To clarify the nature of correlations in Hund metals and its relationship with Mott physics we analyze the electronic correlations in multiorbital systems as a function of intraorbital interaction U, Hund's coupling JH and electronic…

Strongly Correlated Electrons · Physics 2015-09-02 L. Fanfarillo , E. Bascones

At the leading twist, the transversity distribution function, $h^{q}_{1}(x)$, where $x$ is the longitudinal momentum fraction of the proton carried by quark $q$, encodes the transverse spin structure of the nucleon. Extraction of it is…

Nuclear Experiment · Physics 2023-02-01 Babu R. Pokhrel

We study a two-dimensional single band Hubbard Hamiltonian with antisymmetric spin-orbit coupling. We argue that this is the minimal model to understand the electronic properties of locally non-centrosymmetric transition-metal (TM) oxides…

Strongly Correlated Electrons · Physics 2021-04-30 Mehdi Biderang , Alireza Akbari , Jesko Sirker

An oscillographic study of the Hall voltage with an unpolarized alternating current through a platinum sample revealed choral features of the Hall effect, which clearly demonstrate the presence of the spin Hall effect in metals with a…

Mesoscale and Nanoscale Physics · Physics 2021-01-27 Yu. N. Chiang , M. O. Dzyuba

The correlated motion of electrons in a one dimensional system with an externally applied longitudinal electric field is discussed. Within the tight binding model we show that in addition to the well known Bloch oscillations the…

Condensed Matter · Physics 2009-11-10 F. Claro , J. F. Weisz , S. Curilef

A remarkably long-lived spin plasmon may exist in two-dimensional electron liquids with imbalanced spin up and spin down population. Predictions for this interesting mode by Agarwal et al. [Phys. Rev. B 90, 155409 (2014)] are based on the…

Mesoscale and Nanoscale Physics · Physics 2016-03-09 Dominik Kreil , Raphael Hobbiger , Jürgen T. Drachta , Helga M. Böhm

The spin polarization of photoelectrons induced by an intense linearly polarized laser field is investigated using numerical solutions of the time-dependent Schr\"odinger equation in companion with our analytic treatment via the…

Atomic Physics · Physics 2024-02-20 Pei-Lun He , Zhao-Han Zhang , Karen Z. Hatsagortsyan , Christoph H. Keitel

We study theoretically the current-induced spin polarization effect in a two-terminal mesoscopic structure which is composed of a semiconductor two-dimensional electron gas (2DEG) bar with Rashba spin-orbit (SO) interaction and two attached…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Yongjin Jiang

The spin-orbital polarization of superconducting excitations in momentum space is shown to provide distinctive marks of unconventional pairing in the presence of inversion symmetry breaking.Taking the prototypical example of an electronic…

Superconductivity · Physics 2019-10-02 Yuri Fukaya , Shun Tamura , Keiji Yada , Yukio Tanaka , Paola Gentile , Mario Cuoco

A novel spin orientation mechanism - dynamic electron spin polarization has been recently suggested in Phys. Rev. Lett. $\mathbf{125}$, 156801 (2020). It takes place for unpolarized optical excitation in weak magnetic fields of the order of…

Mesoscale and Nanoscale Physics · Physics 2021-09-15 T. S. Shamirzaev , A. V. Shumilin , D. S. Smirnov , J. Rautert , D. R. Yakovlev , M. Bayer

The superposition of complex optical fields in three-dimension (3D) is the basis of several non-trivial wave phenomena. Significant among them are the non-uniform polarization distribution and their topological character, leading to the…

Optics · Physics 2024-10-01 Nitish Kumar , Cyriac Raju , Dinesh N. Naik , Nirmal K. Viswanathan