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相关论文: Electron Spin Resonance in a Two-Dimensional Fermi…

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The direct electron spin resonance (ESR) absorption between a singlet ground state and the triplet excited states of spin gap systems is investigated. Such an absorption, which is forbidden by the conservation of the total spin quantum…

强关联电子 · 物理学 2009-10-31 Toru Sakai , Olivier Cepas , Timothy Ziman

Resonant behavior involving spin-orbit entangled states occurs for spin transport along a narrow channel defined in a two-dimensional electron gas, including an apparent rapid relaxation of the spin polarization for special values of the…

介观与纳米尺度物理 · 物理学 2014-04-02 D. H. Berman , M. Khodas , M. E. Flatté

We report the low-temperature multi-frequency ESR studies of copper pyrimidine dinitrate, a spin-1/2 antiferromagnetic chain with alternating $g$-tensor and the Dzyaloshinskii-Moriya interaction, allowing us to test a new theoretical…

强关联电子 · 物理学 2009-11-11 S. A. Zvyagin , A. K. Kolezhuk , J. Krzystek , R. Feyerherm

Strongly correlated two dimensional electrons are believed to form a spin liquid in some regimes of density and temperature. As the density is varied, one expects a transition from this spin liquid state to a spin density wave…

凝聚态物理 · 物理学 2009-10-28 B. L. Altshuler , L. B. Ioffe , A. I. Larkin , A. J. Millis

When a strong electric field is applied to a colloidal suspension, it may cause an aggregation of the suspended particles in response to the field. In the case of a rotating field, the electrorotation (ER) spectrum can be modified further…

软凝聚态物质 · 物理学 2007-05-23 J. P. Huang , K. W. Yu , G. Q. Gu

Solid-state devices used for quantum computation and quantum sensing applications are adversely affected by loss and noise caused by spurious, charged two-level systems (TLS) and stray paramagnetic spins. These two sources of noise are…

量子物理 · 物理学 2024-07-17 Aditya Jayaraman , Andrey V. Danilov , Jonas Bylander , Sergey E. Kubatkin

We present a new model for the study of spin-orbit coupling in interacting quasi-one-dimensional systems and solve it exactly to find the spectral properties of such systems. We show that the combination of spin-orbit coupling and…

介观与纳米尺度物理 · 物理学 2009-10-31 A. V. Moroz , K. V. Samokhin , C. H. W. Barnes

The spin dynamics of GdI_2 have been investigated by ESR spectroscopy. The temperature dependences of the resonance field and ESR intensity are well described by the model for the spin susceptibility proposed by Eremin et al. [Phys. Rev. B…

强关联电子 · 物理学 2009-11-10 J. Deisenhofer , H. -A. Krug von Nidda , A. Loidl , K. Ahn , R. K. Kremer , A. Simon

The pair spin-orbit interaction (PSOI) is the spin-orbit component of the electron-electron interaction that originates from the Coulomb fields of the electrons. This relativistic component, which has been commonly assumed small in the…

强关联电子 · 物理学 2020-02-12 Yasha Gindikin , Vladimir A. Sablikov

Electric control of spins has been a longstanding goal in the field of solid state physics due to the potential for increased efficiency in information processing. This efficiency can be optimized by transferring spintronics to the atomic…

介观与纳米尺度物理 · 物理学 2023-11-30 Piotr Kot , Maneesha Ismail , Robert Drost , Janis Siebrecht , Haonan Huang , Christian R. Ast

In a generic spin-polarized Fermi liquid, the masses of spin-up and spin-down electrons are expected to be different and to depend on the degree of polarization. This expectation is not confirmed by the experiments on two-dimensional…

强关联电子 · 物理学 2011-07-14 Suhas Gangadharaiah , Dmitrii L. Maslov

Spin-orbit coupling (SOC) in solids normally originates from the electron motion in the electric field of the crystal. It is key to understanding a variety of spin-transport and topological phenomena, such as Majorana fermions and recently…

量子气体 · 物理学 2014-11-18 Sergey V. Syzranov , Michael L. Wall , Victor Gurarie , Ana Maria Rey

We derive a generalized form of the Electric Dipole Spin Resonance (EDSR) Hamiltonian in the presence of the spin-orbit interaction for single spins in an elliptic quantum dot (QD) subject to an arbitrary (in both direction and magnitude)…

介观与纳米尺度物理 · 物理学 2015-05-30 Massoud Borhani , Xuedong Hu

The electron spin in a semiconductor quantum dot can be coherently controlled by an external electric field, an effect called electric-dipole spin resonance (EDSR). Several mechanisms can give rise to the EDSR effect, among which there is a…

介观与纳米尺度物理 · 物理学 2016-04-15 Rui Li

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

Electron states in a inhomogeneous Ge/Si quantum dot array with groups of closely spaced quantum dots were studied by conventional continuous wave ($cw$) ESR and spin-echo methods. We find that the existence of quantum dot groups allows to…

介观与纳米尺度物理 · 物理学 2014-12-23 A. F. Zinovieva , N. P. Stepina , A. I. Nikiforov , A. V. Nenashev , A. V. Dvurechenskii , L. V. Kulik , N. A. Sobolev , M. C. Carmo

In this paper, we present a theoretical framework for understanding the Extremely Correlated Fermi Liquid (ECFL) phenomenon within the $U=\infty$ Hubbard model. Our approach involves deriving equations of motion for the single-particle…

强关联电子 · 物理学 2024-03-13 S. R. Hassan , Gopal Prakash , N. S. Vidhyadhiraja , T. V. Ramakrishnan

The mechanisms limiting the spin coherence time of electrons are of great importance for spintronics. We present electron spin resonance (ESR) and transport measurements of six different two dimensional electron gases in…

Magnetically coupling a nano-mechanical resonator to a double quantum dot confining two electrons can enable the manipulation of a single electron spin and the readout of the resonator's natural frequency. When the Larmor frequency matches…

介观与纳米尺度物理 · 物理学 2009-11-13 N. Lambert , I. Mahboob , M. Pioro-Ladrière , Y. Tokura , S. Tarucha , H. Yamaguchi

Measuring the magnetoresistance (MR) of ultraclean {\it GaAs} two-dimensional holes in a large $r_s$ range of 20-50, two striking behaviors in relation to the spin-orbit coupling (SOC) emerge in response to strong electron-electron…

强关联电子 · 物理学 2017-06-02 Jian Huang , L. N. Pfeiffer , K. W. West