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Spin-pumping across ferromagnet/superconductor (F/S) interfaces has attracted much attention lately. Yet the focus has been mainly on s-wave superconductors-based systems whereas (high-temperature) d-wave superconductors such as YBa2Cu3O7-d…

We calculate the spin relaxation time of conduction electrons in n-doped bulk gallium arsenide. We consider the Elliot-Yafet spin-relaxation mechanism, driven by Coulombic-impurity and electron-electron scattering. We find that these two…

Condensed Matter · Physics 2009-11-10 P. I. Tamborenea , M. A. Kuroda , F. L. Bottesi

When spin relaxation is governed by spontaneous emission of a photon into the resonator used for signal detection (the Purcell effect), the relaxation time $T_1$ depends on the spin-resonator frequency detuning $\delta$ and coupling…

We present a systematic ab initio investigation of the longitudinal and transverse spin relaxation times of magnetic single adatoms deposited on metallic substrates. Our analysis based on time-dependent density functional theory shows that…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 J. Ibañez-Azpiroz , M. dos Santos Dias , S. Blügel , S. Lounis

A realistic pseudopotential model is introduced to investigate the phonon-induced spin relaxation of conduction electrons in bulk silicon. We find a surprisingly subtle interference of the Elliott and Yafet processes affecting the spin…

Materials Science · Physics 2010-01-05 J. L. Cheng , M. W. Wu , J. Fabian

We report the systematic studies of spin current transport and relaxation mechanism in highly doped organic polymer film. In this study, we have determined spin diffusion length (SDL), spin lifetime, and spin diffusion constant by using…

Materials Science · Physics 2014-11-12 Motoi Kimata , Daisuke Nozaki , Yasuhiro Niimi , Hiroyuki Tajima , YoshiChika Otani

We show that in ferromagnetic (FM)/normal metal (NM) bilayers the dynamic coupling at the interface transfers an additional magnetic relaxation from the heavily damped motion of the conduction electron spins in the NM layer to the FM spins.…

Materials Science · Physics 2012-07-16 S. M. Rezende , R. Rodríguez-Suárez , M. M. Soares , L. H. Vilela-Leão , A. Azevedo

We discuss the influence of electrical effects on spin transport, and in particular the propagation and relaxation of spin polarized electrons in the presence of inhomogeneous electric fields. We show that the spin relaxation length…

Mesoscale and Nanoscale Physics · Physics 2007-10-24 Dan Csontos , Sergio E. Ulloa

The spin-spin correlation length and the static structure factor for bilayer antiferromagnets, such as YBa$_2$Cu$_3$O$_{6}$, are calculated using field theoretical and numerical methods. It is shown that these quantities can be directly…

Strongly Correlated Electrons · Physics 2009-10-31 Lan Yin , Matthias Troyer , Sudip Chakravarty

We analyze the density and size dependence of the relaxation time $\tau$ for kinetically constrained spin systems. These have been proposed as models for strong or fragile glasses and for systems undergoing jamming transitions. For the one…

Statistical Mechanics · Physics 2015-06-25 Nicoletta Cancrini , Fabio Martinelli , Cyril Roberto , Cristina Toninelli

The D'yakonov-Perel' spin relaxation induced by the spin-orbit interaction is examined in disordered two-dimensional electron gas. It is shown that, because of the electron-electron interactions different spin relaxation rates can be…

Disordered Systems and Neural Networks · Physics 2010-11-16 Alexander Punnoose , Alexander M. Finkel'stein

The spin diffusion/transport in $n$-type (001) GaAs quantum well at high temperatures ($\ge120$ K) is studied by setting up and numerically solving the kinetic spin Bloch equations together with the Poisson equation self-consistently. All…

Materials Science · Physics 2007-05-23 J. L. Cheng , M. W. Wu

We investigate nuclear spin-lattice relaxation data in the normal state of optimally doped YBaCuO_7 by analyzing the contributions to the relaxation rate of the copper, planar oxygen and yttrium along the directions perpendicular to the…

Superconductivity · Physics 2009-11-11 A. Uldry , P. F. Meier

Quasi particle based (e.g. Boltzmann equation) studies of spin wave transport often assume that their scattering rates follow the simple form $\eta=\alpha \omega$, with the Gilbert damping $\alpha$ and frequency $\omega$. In this work, we…

Mesoscale and Nanoscale Physics · Physics 2026-05-11 Mexx. E. Y. Regout , Bertrand Dupé , Matthieu J. Verstraete

Static spin susceptibility of superconductors with spin-orbit relaxation has been calculated in the seminal work of A.A. Abrikosov and L.P. Gor'kov [Sov. Phys. JETP, {\bf 15}, 752 (1962)]. Surprisingly the generalization of this result to…

Superconductivity · Physics 2020-10-28 M. A. Silaev

Epitaxial Y3Fe5O12 thin films have been deposited by off-axis sputtering, which exhibit excellent crystalline quality, enabling observation of large spin pumping signals in Pt/Y3Fe5O12 and W/Y3Fe5O12 bilayers driven by cavity ferromagnetic…

Materials Science · Physics 2014-05-20 H. L. Wang , C. H. Du , Y. Pu , R. Adur , P. C. Hammel , F. Y. Yang

We consider a quasiclassical model that allows us to simulate the process of spin diffusion and relaxation in the presence of a highly nonuniform magnetic field. The energy of the slow relaxing spins flows to the fast relaxing spins due to…

Materials Science · Physics 2009-11-10 G. P. Berman , B. M. Chernobrod , V. N. Gorshkov , V. I. Tsifrinovich

We investigated spin-orbit torques in prototypical Pt-based spintronic devices. We found that, in Pt/Ni and Pt/Fe bilayers, the damping-like torque efficiency depends on the thickness of the Pt layer. We also found that the damping-like…

Materials Science · Physics 2021-01-20 Hiroki Hayashi , Akira Musha , Hiroto Sakimura , Kazuya Ando

Temperature-dependent spin-Seebeck effect data on Pt|YIG (Y$_3$Fe$_5$O$_{12}$)|GGG (Gd$_3$Ga$_5$O$_{12}$) are reported for YIG films of various thicknesses. The effect is reported as a spin-Seebeck resistivity (SSR), the inverse spin-Hall…

We report magnon spin transport in nickel ferrite (NiFe$_2$O$_4$, NFO)/ platinum (Pt) bilayer systems at room temperature. A nonlocal geometry is employed, where the magnons are excited by the spin Hall effect or by the Joule heating…

Materials Science · Physics 2017-04-14 J. Shan , P. Bougiatioti , L. Liang , G. Reiss , T. Kuschel , B. J. van Wees