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Cr^5+ doped K_3NbO_8, considered to be useful as a electron spin qubit, has been investigated by pulsed X-band (~9.7 GHz) and 240 GHz electron paramagnetic resonance and electron nuclear double resonance (ENDOR). Comparison of the low…

Chemical Physics · Physics 2008-12-01 S. Nellutla , G. W. Morley , M. Pati , N. S. Dalal , J. van Tol

The control of the spin degree of freedom is at the heart of spintronics, which can potentially be achieved by spin-orbit coupling or band topological effects. In this paper, we explore another potential controlled mechanism under debate:…

Other Condensed Matter · Physics 2024-11-12 J. A. Sánchez-Monroy , Carlos Mera Acosta

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…

Strongly Correlated Electrons · Physics 2017-06-02 Jian Huang , L. N. Pfeiffer , K. W. West

Herein, we study the spin-wave dispersion and dissipation in a ferromagnetic insulator--normal metal--ferromagnetic insulator system. Long-range dynamic coupling because of spin pumping and spin transfer lead to collective magnetic…

Mesoscale and Nanoscale Physics · Physics 2014-11-25 Hans Skarsvag , Andre Kapelrud , Arne Brataas

The advent of magnetic two-dimensional electron gases (2DEGs) at oxide interfaces has provided new opportunities in the field of spintronics. The enhancement of magnetism in 2DEGs at oxide interfaces continues to be a significant challenge,…

The Gilbert damping in ferromagnetic semiconductors is theoretically investigated based on the $s$-$d$ model. In contrast to the situation in metals, all the spin-conserving scattering in ferromagnetic semiconductors supplies an additional…

Materials Science · Physics 2010-05-13 K. Shen , G. Tatara , M. W. Wu

The proximity of superconductivity and antiferromagnetism in the phase diagram of iron arsenides, the apparently weak electron-phonon coupling and the "resonance peak" in the superconducting spin excitation spectrum have fostered the…

Superconductivity · Physics 2010-03-01 D. S. Inosov , J. T. Park , P. Bourges , D. L. Sun , Y. Sidis , A. Schneidewind , K. Hradil , D. Haug , C. T. Lin , B. Keimer , V. Hinkov

We report the observation of a parallel magnetic field induced metal-insulator transition (MIT) in a high-mobility two-dimensional electron gas (2DEG) for which spin and localization physics most likely play no major role. The high-mobility…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 Xiaoqing Zhou , B. Schmidt , C. Proust , G. Gervais , L. N. Pfeiffer , K. W. West , S. Das Sarma

Understanding the Gilbert damping in exchange-coupled multilayer materials is particularly important to develop future fast switching spintronics devices. Here, we report an experimental investigation of temperature-dependent Gilbert…

Applied Physics · Physics 2019-07-17 Yurui Wei , Yi Huang , Yueyue Liu , Huiliang Wu , Yunxu Ma , Chunlei Zhang , Jianbo Wang , Jiangwei Cao , Qingfang Liu

We study optical conductivity of a two-dimensional electron gas with anisotropic $k$-cubic Rashba spin-orbit interaction formed at the LaAlO$_3$/SrTiO$_3$ interface. The anisotropic spin splitting energy gives rise to different features of…

Mesoscale and Nanoscale Physics · Physics 2016-09-01 Alestin Mawrie , Tarun Kanti Ghosh

The emerging field of superconductor (SC) spintronics has attracted intensive attentions recently. Many fantastic spin dependent properties in SC have been discovered, including the observation of large magnetoresistance, long spin…

The Gilbert damping parameter, which describes magnetization dynamics, is crucial for the performance of modern spintronic devices, affecting factors such as the switching speed and critical current density of magnetoresistive random access…

Materials Science · Physics 2024-09-26 Shi-Bo Zhao , Xiang-Fan Huang , Ze-quan Wang Ruqian Wu , Yusheng Hou

While it is known that a resonant amplification of Tc in two-gap superconductors can be driven by using the Fano-Feshbach resonance tuning the chemical potential near a Lifshitz transition, little is known on tuning the Tc resonance by…

The interplay of Anderson localization and electron-electron interactions is known to lead to enhancement of superconductivity due to multifractality of electron wave functions. We develop the theory of multifractally-enhanced…

Superconductivity · Physics 2022-11-23 E. S. Andriyakhina , I. S. Burmistrov

The effect of spin-orbit (and Darwin) interaction on a 2D electron gas subject to a radial symmetric, inhomogeneous $1/r$-magnetic field is discussed analytically in a perturbative and non-perturbative manner. For this purpose, we…

Mesoscale and Nanoscale Physics · Physics 2023-06-21 Dominik Sidler , Michael Ruggenthaler , Angel Rubio

In symmetric quantum dots (QDs), it is well known that the spin-hot spot (i.e., the cusp-like structure due to the presence of degeneracy near the level or anticrossing point) is present for the pure Rashba case but is absent for the pure…

Mesoscale and Nanoscale Physics · Physics 2013-06-14 Sanjay Prabhakar , Roderick Melnik , Luis L. Bonilla

The outstanding discrepancy between the measured and calculated (local-density approximation) Fermi surfaces in the well-characterized, paramagnetic Fermi liquid Sr2RhO4 is resolved by including the spin-orbit coupling and Coulomb…

Strongly Correlated Electrons · Physics 2009-11-13 Guo-Qiang Liu , V. N. Antonov , O. Jepsen , O. K. Andersen

The electrical generation of spin signals is of central interest for spintronics, where graphene stands as a relevant platform as its spin-orbit coupling (SOC) is tuned by proximity effects. Here, we propose an enhancement of spin-charge…

Mesoscale and Nanoscale Physics · Physics 2025-10-27 Joaquín Medina Dueñas , Santiago Giménez de Castro , Jose H. Garcia , Stephan Roche

Herein, we reported giant tunability of the physical properties of 2DEGs at the spinel/perovskite interface of {\gamma}-Al2O3/SrTiO3 (GAO/STO). By modulating the carrier density thus the band filling with ionic-liquid gating, the system…

We theoretically investigate spin transport in a junction system composed of a ferromagnetic insulator (FI) and a two-dimensional electron gas (2DEG) with both Rashba and Dresselhaus spin-orbit interactions. We briefly present our findings…

Mesoscale and Nanoscale Physics · Physics 2024-11-12 Masaki Yama , Mamoru Matsuo , Takeo Kato
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