English
Related papers

Related papers: Boltzmann approach to the longitudinal spin Seebec…

200 papers

We investigated the effect of an external magnetic field on the diffusive spin transport by magnons in the magnetic insulator yttrium iron garnet (YIG), using a non-local magnon transport measurement geometry. We observed a decrease in…

Mesoscale and Nanoscale Physics · Physics 2016-01-27 L. J. Cornelissen , B. J. van Wees

We report the nonlocal spin Seebeck effect (nlSSE) in a lateral configuration of Pt/Y$_3$Fe$_5$O$_{12}$(YIG)/Pt systems as a function of the magnetic field $B$ (up to 10 T) at various temperatures $T$ (3 K < $T$ < 300 K). The nlSSE voltage…

Materials Science · Physics 2020-01-28 Koichi Oyanagi , Takashi Kikkawa , Eiji Saitoh

The role of electron-phonon scattering in finite-temperature anomalous Hall effect is still poorly understood. In this work, we present a Boltzmann theory for the side-jump contribution from electron-phonon scattering, which is derived from…

Mesoscale and Nanoscale Physics · Physics 2019-07-03 Cong Xiao , Ying Liu , Ming Xie , Shengyuan A. Yang , Qian Niu

The origin of the suppression of the longitudinal spin Seebeck effect by applied magnetic fields is studied. We perform numerical simulations of the stochastic Landau-Lifshitz-Gilbert equation of motion for an atomistic spin model and…

Materials Science · Physics 2016-05-16 Ulrike Ritzmann , Denise Hinzke , Andreas Kehlberger , Er-Jia Guo , Mathias Kläui , Ulrich Nowak

We derive the Onsager response matrix of fluctuation-mediated spin-collinear transport through a ferromagnetic insulator and normal metal interface driven by a temperature difference, spin accumulation, or magnetic field. We predict…

Materials Science · Physics 2015-08-14 Jiang Xiao , Gerrit E. W. Bauer

We report magnetoresistance (MR) measurements on MgB2 and the corresponding full account from ab-initio calculations; we suggest that this combination can be a useful tool to probe electron- phonon coupling. We obtain good quantitative…

We investigate the generation of magnonic thermal spin currents and their mode selective spin transport across interfaces in insulating, compensated ferrimagnet/normal metal bilayer systems. The spin Seebeck effect signal exhibits a…

We present a theory of the spin Seebeck effect driven by subthermal non-local phonon heat transfer and spectral non-uniform temperature distribution. The theory explains the non-local behavior of the effect arising from the fact that…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 K. S. Tikhonov , J. Sinova , A. M. Finkel'stein

We present a first-principles study of the magnetotransport phenomena in p-doped diamond via the exact solution of the linearized Boltzmann transport equation, in which the materials' parameters, including electron-phonon and phonon-phonon…

Materials Science · Physics 2018-11-21 Francesco Macheda , Nicola Bonini

We calculate the phonon, electron and magnon temperature profiles in yttrium iron garnet/platinum bilayers by diffusive theory with appropriate boundary conditions, in particular taking into account interfacial thermal resistances. Our…

The theory of Raman scattering by the electron--phonon coupled system in metals and heavily doped semiconductors is developed taking into account the Coulomb screening and the electron--phonon deformation interaction. The Boltzmann equation…

Materials Science · Physics 2009-11-10 L. Falkovsky

Nambu-Goldstone theorem provides gapless modes to both relativistic and nonrelativistic systems. The Nambu-Goldstone bosons in insulating magnets are called magnons or spin-waves and play a key role in magnetization transport. We review…

Mesoscale and Nanoscale Physics · Physics 2017-02-24 Kouki Nakata , Pascal Simon , Daniel Loss

Magnon-polarons, a type of hybridized excitations between magnons and phonons, were first reported in yttrium iron garnet as anomalies in the spin Seebeck effect responses. Here we report an observation of antiferromagnetic (AFM)…

Electric charge transport of hadronic matter at finite temperature and magnetic field is studied within the linear sigma model. Anisotropic transport coefficients associated with the charge transport are estimated both in the weak and…

High Energy Physics - Phenomenology · Physics 2023-03-07 Ritesh Ghosh , Manu Kurian

Here we present a theoretical analysis of the effect of inelastic electron scattering on spin-dependent transport characteristics (conductance, current-voltage dependence, magnetoresistance, shot noise spectrum, Fano factor) for magnetic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Kamil Walczak

We present a comprehensive study on the longitudinal magneto-thermal transport in a paramagnetic effective spin-1/2 magnetic insulator CsYbSe$_2$, by introducing a minimal model requiring only Zeeman splitting and magnetoelastic coupling.…

Strongly Correlated Electrons · Physics 2025-04-29 Christopher A. Pocs , Ian A. Leahy , Jie Xing , Eun Sang Choi , Athena S. Sefat , Michael Hermele , Minhyea Lee

Magnetic monopoles, elusive in high-energy physics, have been realised as emergent quasiparticles in solid-state systems, where their unique properties hold promise for novel spintronic applications. Magnetic monopoles have been invoked in…

In this work, we report the theoretical possibility of generating magnon polaron excitations through a space-varying magnetic field. The spatial dependence of the magnetic field in the Zeeman interaction gives rise to a magnon-phonon…

Mesoscale and Nanoscale Physics · Physics 2020-09-16 N. Vidal-Silva , E. Aguilera , A. Roldán-Molina , R. A. Duine , A. S. Nunez

In the framework of the kinetic approach based on the Boltzmann equation for the phonon distribution function, we analyze phonon heat transfer in a heterostructure containing a layer of a normal metal ($ N $) and a layer of a ferromagnetic…

Materials Science · Physics 2019-07-17 A. I. Bezuglyj , V. A. Shklovskij , V. V. Kruglyak , R. V. Vovk

We generalize the two-temperature model [Sanders and Walton, Phys. Rev. B, 15, 1489 (1977)] for coupled phonon-magnon diffusion to include the effect of the concurrent magnetization flow. Working within the framework of Boltzmann transport…

Mesoscale and Nanoscale Physics · Physics 2014-07-16 Bolin Liao , Jiawei Zhou , Gang Chen