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It is shown that a flux of unpolarized electrons across a symmetric double barrier quantum well induces a spin polarization inside the well. Besides, the transmitted current acquires a spin polarized component and the spin-Hall current…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. G. Mal'shukov , C. S. Chu

We study the tunneling of conduction electrons through a (110)-oriented single-barrier heterostructure grown from III-V semiconductor compounds. It is shown that, due to low spatial symmetry of such a barrier, the tunneling current through…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 P. S. Alekseev , M. M. Glazov , S. A. Tarasenko

We show that electrons recolliding with the ionic core upon tunnel ionization of noble gas atoms driven by a strong circularly polarized laser field in combination with a counter-rotating second harmonic are spin polarized and that their…

Atomic Physics · Physics 2017-08-02 David Ayuso , Álvaro Jiménez-Galán , Felipe Morales , Misha Ivanov , Olga Smirnova

The influence of disorder and interaction on the ground state polarization of the two-dimensional (2D) correlated electron gas is studied by numerical investigations of unrestricted Hartree-Fock equations. The ferromagnetic ground state is…

Strongly Correlated Electrons · Physics 2009-11-10 M. Nita , V. Dinu , A. Aldea , B. Tanatar

In this work, we study the conductance and the thermoelectric properties of a quantum dot embedded between two metallic leads with a side-coupled triple quantum dot molecule under a magnetic field. We focus on the spin polarization and…

Mesoscale and Nanoscale Physics · Physics 2017-10-16 J. P. Ramos-Andrade , F. J. Peña , A. González , O. Ávalos-Ovando , P. A. Orellana

We demonstrate both theoretically and experimentally beam-dependent photonic spin-orbit coupling in a two-wave mixing process described by an equivalent of the Pauli equation in quantum mechanics. The considered structured light in the…

Aiming at increasing the ferroelectric polarization in AFM-E ortho-\hmo, we investigate the in-plane strain effects on both the magnetic configuration and the polarization by means of density functional theory calculations and model…

Spin-orbit coupling links a particle's velocity to its quantum mechanical spin, and is essential in numerous condensed matter phenomena, including topological insulators and Majorana fermions. In solid-state materials, spin-orbit coupling…

Quantum Gases · Physics 2013-12-12 Victor Galitski , Ian B. Spielman

We propose a microscopic description for the polarization from the first principle through the spin-orbit coupling in particle collisions. The model is different from previous ones based on local equilibrium assumptions for the spin degree…

Nuclear Theory · Physics 2019-12-11 Jun-jie Zhang , Ren-hong Fang , Qun Wang , Xin-Nian Wang

The spin filtering effect of the electron current in a double-barrier resonant-tunneling diode (RTD) consisting of ZnMnSe semimagnetic layers has been studied theoretically. The influence of the distribution of the magnesium ions on the…

Other Condensed Matter · Physics 2009-11-10 N. N. Beletskii , G. P. Berman , S. A. Borysenko

After more than a decade of extensive research on the magnetic order triggered by lattice defects in a wide range of nominally non-magnetic materials, we report its application in a spintronic device. This device is based on a spin-filter…

Mesoscale and Nanoscale Physics · Physics 2017-07-10 L. Botsch , I. Lorite , Y. Kumar , P. Esquinazi , T. Michalsky , J. Zajadacz , K. Zimmer

Polarization is a key ingredient of all waves, including the electromagnetic wave, the acoustic wave, as well as the spin wave. Due to the fixed ferromagnetic order, the spin wave in ferromagnet is limited to the right circular…

Materials Science · Physics 2018-10-30 Jin Lan , Weichao Yu , Jiang Xiao

Electron transport in a new low-dimensional structure - the nuclear spin polarization induced quantum wire (NSPI QW) is theoretically studied. In the proposed system the local nuclear spin polarization creates the effective hyperfine field…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Yu. V. Pershin , S. N. Shevchenko , I. D. Vagner , P. Wyder

We derive the contributions of spin-orbit and spin-spin coupling to the gravitational radiation from coalescing binary systems of spinning compact objects. We calculate spin effects in the symmetric, trace-free radiative multipoles that…

General Relativity and Quantum Cosmology · Physics 2010-01-06 Lawrence E. Kidder , Clifford M. Will , Alan G. Wiseman

We propose and theoretically investigate spin superconducting qubits. Spin superconducting qubit consists of a single spin confined in a Josephson junction. We show that owing to spin-orbit interaction, superconducting difference across the…

Mesoscale and Nanoscale Physics · Physics 2012-12-07 C. Padurariu , Yu. V. Nazarov

We investigate the role played by the electron spin and the spin-orbit interaction on the exceptional electronphonon coupling at the Tl/Si(111) surface. Our first-principles calculations demonstrate that the particular spin pattern of this…

Mesoscale and Nanoscale Physics · Physics 2018-05-23 Peio Garcia-Goiricelaya , Idoia G. Gurtubay , Asier Eiguren

We study the signatures of disorder in the production of orbital electron entanglement in quantum wires. Disordered entanglers suffer the effects of localization of the electron wave function and random fluctuations in the entanglement…

Mesoscale and Nanoscale Physics · Physics 2014-03-07 Alberto Aleta , Héctor Villarubia-Rojo , Diego Frustaglia , Víctor A. Gopar

Spin-split superconductors offer new functionality compared to conventional superconductors such as diode-effects and efficient thermoelectricity. The superconducting state can nevertheless only withstand a small amount of spin-splitting.…

Superconductivity · Physics 2024-05-15 Johanne Bratland Tjernshaugen , Morten Amundsen , Jacob Linder

We present two theoretical schemes for spin filters in one-dimensional semiconductor quantum wires with spatially modulated Rashba spin-orbit coupling (SOC) as well as weak magnetic potential. For case I, the SOC is periodic and the weak…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. J. Gong , Z. Q. Yang

We consider a spin-orbit coupled particle confined in a quantum dot in a bath of impurity spins. We investigate the consequences of spin-orbit coupling on the interactions that the particle mediates in the spin bath. We show that in the…

Mesoscale and Nanoscale Physics · Physics 2014-09-02 Peter Stano , Jaroslav Fabian , Igor Žutić