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相关论文: Spin separation in cyclotron motion

200 篇论文

The spatial separation of electron spins followed by the control of their individual spin dynamics has recently emerged as an essential ingredient in many proposals for spin-based technologies because it would enable both of the two spin…

We propose a new scheme of spin filtering employing ballistic nanostructures in two dimensional electron gases (2DEGs). The proposal is essentially based on the spin-orbit (SO) interaction arising from the lateral confining electric field.…

介观与纳米尺度物理 · 物理学 2009-11-13 S. Bellucci , F. Carillo , P. Onorato

We load atoms into every site of an optical lattice and selectively spin flip atoms in a sublattice consisting of every other site. These selected atoms are separated from their unselected neighbors by less than an optical wavelength. We…

量子物理 · 物理学 2007-08-15 P. J. Lee , M. Anderlini , B. L. Brown , J. Sebby-Strabley , W. D. Phillips , J. V. Porto

An electron is usually considered to have only one form of kinetic energy, but could it have more, for its spin and charge, by exciting other electrons? In one dimension (1D), the physics of interacting electrons is captured well at low…

We investigate the pairing physics in a three-component Fermi-Fermi mixture, where a few impurities are immersed in a non-interacting spin-$\frac{1}{2}$ Fermi gas with synthetic spin-orbit coupling (SOC), and interact attractively with one…

量子气体 · 物理学 2015-06-19 Lihong Zhou , Xiaoling Cui , Wei Yi

Cassini states correspond to the equilibria of the spin axis of a body when its orbit is perturbed. They were initially described for planetary satellites, but the spin axes of black hole binaries also present this kind of equilibria. In…

广义相对论与量子宇宙学 · 物理学 2016-01-15 Alexandre C. M. Correia

An effective Hamiltonian is derived to describe the conduction band of monolayer black phosphorus (phosphorene) in the presence of spin-orbit coupling and external electric field. Envelope function approximation along with symmetry…

材料科学 · 物理学 2020-01-01 S. M. Farzaneh , Shaloo Rakheja

The spin transport characteristics of a nanowire directional electronic coupler have been evaluated theoretically via a transfer matrix approach. The application of a gate field in the region of mixing allows for control of spin current…

介观与纳米尺度物理 · 物理学 2015-06-16 M. Rebello Sousa Dias , V. Lopez-Richard , G. E. Marques , S. E. Ulloa

Spin-selective insulators emerge in systems composed of fermions with two internal degrees of freedom and another carrier, which could be fermionic or bosonic. These insulators are characterized by a gapless state for one kind of fermion…

强关联电子 · 物理学 2022-09-12 J. Silva-Valencia

Motivated by the experimental observation of spin-charge separation in one-dimensional interacting Fermi gases, we investigate these systems in the presence of spin-orbit coupling and Rabi fields. We demonstrate that spin-charge-separated…

量子气体 · 物理学 2024-05-31 Xiaoyong Zhang , Carlos A. R. Sá de Melo

We investigate the spin-dependent transport properties of a two-dimensional electron gas formed at oxides' interface in the presence of a magnetic field. We consider several scenarios for the oxides' properties, including oxides with…

介观与纳米尺度物理 · 物理学 2015-05-20 Chenglong Jia , Jamal Berakdar

We evaluate the charge and longitudinal spin response functions of a two-dimensional electron gas with $e^2/r$ interactions in an arbitrary state of spin polarization, using a structurally self-consistent approach to treat exchange and…

强关联电子 · 物理学 2015-06-24 B. Davoudi , M. P. Tosi

We propose a series of paired spin-singlet quantum Hall states, which exhibit a separation of spin and charge degrees of freedom. The fundamental excitations over these states, which have filling fraction \nu=2/(2m+1) with m an odd integer,…

介观与纳米尺度物理 · 物理学 2007-05-23 E. Ardonne , F. J. M. van Lankvelt , A. W. W. Ludwig , K. Schoutens

We consider spin-resolved cyclotron trajectories in a magnetic focusing device with quantum point source and drain contacts defined within the InSb two-dimensional electron gas and their mapping by the scanning gate microscopy. Besides the…

介观与纳米尺度物理 · 物理学 2018-10-17 Alina Mrenca-Kolasinska , Krzysztof Kolasinski , Bartłomiej Szafran

The chiral magnetic and chiral separation effects---quantum-anomaly-induced electric current and chiral current along an external magnetic field in parity-odd quark-gluon plasma---have received intense studies in the community of heavy-ion…

量子气体 · 物理学 2016-03-22 Xu-Guang Huang

We study the spin-dependent transport through a quantum dot coupled to two ferromagnetic electrodes using the equation of motion method for the nonequilibrium Green's functions. Our results show that the conductance and the density of…

介观与纳米尺度物理 · 物理学 2007-05-23 Huanwen Lai , Xuean Zhao , Zhu-An Xu , You-Quan Li

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…

量子气体 · 物理学 2013-12-12 Victor Galitski , Ian B. Spielman

We calculate the nonequilibrium dynamic evolution of a one-dimensional system of two-component fermionic atoms after a strong local quench by using a time-dependent spin-density-functional theory. The interaction quench is also considered…

强关联电子 · 物理学 2015-05-27 Gao Xianlong

It is shown that the charge susceptibility in nearly half-filled two-dimensional (2D) metals, with technically nested Fermi surface, shows anomaly at the wavevector different from that for the spin susceptibility at low temperatures. Namely…

凝聚态物理 · 物理学 2007-05-23 Kazumasa Miyake , Osamu Narikiyo

There has been considerable debate on the onset of exotic spin phenomena in quantum wires due to enhanced many-body effects caused by the one-dimensional (1D) alignment of charge carriers. We explain various observed spin effects, such as a…

介观与纳米尺度物理 · 物理学 2015-02-17 Alfredo X. Sánchez , Jean-Pierre Leburton