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The spin Seebeck effect is useful for probing the spin correlations and magnetic order in magnetic insulators. Here, we report a strong longitudinal spin Seebeck effect (LSSE) in antiferromagnetic V2O3 thin films. The LSSE response at…

Mesoscale and Nanoscale Physics · Physics 2026-01-06 Renjie Luo , Tanner J. Legvold , Gage Eichman , Henry Navarro , Ali C. Basaran , Erbin Qiu , Ivan K. Schuller , Douglas Natelson

In this work we investigated thin films of the ferrimagnetic insulators YIG and NFO capped with thin Pt layers in terms of the longitudinal spin Seebeck effect (LSSE). The electric response detected in the Pt layer under an out-of-plane…

Understanding impacts of phase transition, phase coexistence, and surface magnetism on the longitudinal spin Seebeck effect (LSSE) in a magnetic system is essential to manipulate the spin to charge current conversion efficiency for…

We present results on the longitudinal spin Seebeck effect (LSSE) shown by semiconducting ferrimagnetic NiFe2O4/Pt films from room temperature down to 50K base temperature. To the best of our knowledge, this is the first observation of spin…

The longitudinal spin Seebeck effect (LSSE) in Pt/Y$_3$Fe$_5$O$_{12}$ (YIG) junction systems has been investigated at various magnetic fields and temperatures. We found that the LSSE voltage in a Pt/YIG-slab system is suppressed by applying…

Materials Science · Physics 2015-08-19 Takashi Kikkawa , Ken-ichi Uchida , Shunsuke Daimon , Zhiyong Qiu , Yuki Shiomi , Eiji Saitoh

The longitudinal spin Seebeck effect (LSSE) has been investigated in high-quality epitaxial CoFe2O4 (CFO) thin films. The thermally excited spin currents in the CFO films are electrically detected in adjacent Pt layers due to the inverse…

Materials Science · Physics 2016-02-17 Er-Jia Guo , Andreas Herklotz , Andreas Kehlberger , Joel Cramer , Gerhard Jakob , Mathias Klaeui

The spin-Seebeck effect (SSE) in ferromagnetic metals and insulators has been investigated systematically by means of the inverse spin-Hall effect (ISHE) in paramagnetic metals. The SSE generates a spin voltage as a result of a temperature…

Materials Science · Physics 2012-06-26 K. Uchida , T. Ota , H. Adachi , J. Xiao , T. Nonaka , Y. Kajiwara , G. E. W. Bauer , S. Maekawa , E. Saitoh

We report the observation of longitudinal spin Seebeck effects (LSSE) in an all-oxide bilayer system comprising an IrO$_2$ film and an Y$_3$Fe$_5$O$_{12}$ film. Spin currents generated by a temperature gradient across the…

Materials Science · Physics 2016-08-04 Z. Qiu , D. Hou , K. Uchida , E. Saitoh

We report the first experimental observation of the spin Seebeck effect in magnetite thin films. The signal observed at temperatures above the Verwey transition is a contribution from both the anomalous Nernst (ANE) and spin Seebeck effects…

We have studied thermally driven magnon spin transport (spin Seebeck effect, SSE) in heterostructures of antiferromagnetic $\alpha$-$\mathrm{Cr_2O_3}$ and Pt at low temperatures. Monitoring the amplitude of the local and nonlocal SSE…

Mesoscale and Nanoscale Physics · Physics 2021-02-26 Prasanta Muduli , Richard Schlitz , Tobias Kosub , René Hübner , Artur Erbe , Denys Makarov , Sebastian T. B. Goennenwein

We develop a theory of the spin Seebeck effect (SSE) in paramagnets as well as in antiferromagnets at elevated temperatures where the classical limit of the fluctuation-dissipation theorem is applicable. Employing dissipative stochastic…

Mesoscale and Nanoscale Physics · Physics 2019-08-27 Yutaka Yamamoto , Masanori Ichioka , Hiroto Adachi

Longitudinal spin Seebeck effect has been investigated for an uniaxial antiferromagnetic insulator Cr2O3, characterized by a spin-flop transition under magnetic field along the c-axis. We have found that temperature gradient applied normal…

Strongly Correlated Electrons · Physics 2016-01-06 S. Seki , T. Ideue , M. Kubota , Y. Kozuka , R. Takagi , M. Nakamura , Y. Kaneko , M. Kawasaki , Y. Tokura

This article reports temperature-dependent measurements of longitudinal spin Seebeck effects (LSSEs) in Pt/Y$_3$Fe$_5$O$_{12}$ (YIG)/Pt systems in a high temperature range from room temperature to above the Curie temperature of YIG. The…

Materials Science · Physics 2015-05-28 Ken-ichi Uchida , Takashi Kikkawa , Asuka Miura , Junichiro Shiomi , Eiji Saitoh

We develop a microscopic theory of the spin Seebeck effect (SSE) at the interface of a bilayer system of a ferromagnetic insulator and graphene. We compare the tunneling spin current at the interface because of the SSE and the spin pumping…

Mesoscale and Nanoscale Physics · Physics 2024-12-25 Xin Hu , Yuya Ominato , Mamoru Matsuo

We have theoretically investigated the spin Seebeck effect (SSE) in a normal metal (NM)/paramagnetic insulator (PI) bilayer system. Through a linear response approach, we calculated the thermal spin pumping from PI to NM and backflow spin…

Mesoscale and Nanoscale Physics · Physics 2023-01-31 Koichi Oyanagi , Saburo Takahashi , Takashi Kikkawa , Eiji Saitoh

We studied the transient behavior of the spin current generated by the longitudinal spin Seebeck effect (LSSE) in a set of platinum-coated yttrium iron garnet (YIG) films of different thicknesses. The LSSE was induced by means of pulsed…

We report a simultaneous measurement of a longitudinal spin Seebeck effect (LSSE) and thermal conductivity in a Pt/${\rm Y_{3}Fe_{5}O_{12}}$ (YIG)/Pt system in a temperature range from 10 to 300 K. By directly monitoring the temperature…

Materials Science · Physics 2017-05-10 Ryo Iguchi , Ken-ichi Uchida , Shunsuke Daimon , Eiji Saitoh

Interfacing an organic semiconductor C60 with a non-magnetic metallic thin film (Cu or Pt) has created a novel heterostructure that is ferromagnetic at ambient temperature, while its interface with a magnetic metal (Fe or Co) can tune the…

Applied Physics · Physics 2019-05-14 V. Kalappattil , R. Geng , R. Das , H. Luong , M. Pham , T. Nguyen , A. Popescu , L. M. Woods , M. Kläui , H. Srikanth , M. H. Phan

The spin Seebeck effect (SSE) is a phenomenon of thermoelectric generation that occurs within a device consisting of a bilayer of a metal and a ferromagnet. When Tb$_3$Fe$_5$O$_{12}$ (TbIG) is substituted for the ferromagnet, the effect…

Materials Science · Physics 2025-01-10 Michiyasu Mori , Bruno Tomasello , Timothy Ziman

We study the temperature dependence of the longitudinal spin-Seebeck effect (LSSE) in a yttrium iron garnet Y3Fe5O12 (YIG) / Pt system for samples of different thicknesses. In this system, the thermal spin torque is magnon-driven. The LSSE…

Materials Science · Physics 2015-09-30 Hyungyu Jin , Stephen R. Boona , Zihao Yang , Roberto C. Myers , Joseph P. Heremans
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