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相关论文: Spin Seebeck Effect near the Antiferromagnetic Spi…

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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…

We studied the transition between the antiferromagnetic and the surface spin-flop phases of a uniaxial antiferromagnetic [Fe(14 \AA)/Cr(11 \AA]$_{\rm x20}$ superlattice. For external fields applied parallel to the in-plane easy axis, the…

材料科学 · 物理学 2007-05-23 M. G. Pini , A. Rettori , P. Betti , J. S. Jiang , S. G. E. te Velthuis , G. P. Felcher , S. D. Bader

Low power spintronic devices based on the propagation of pure magnonic spin currents in antiferromagnetic insulator materials offer several distinct advantages over ferromagnetic components including higher frequency magnons and a stability…

材料科学 · 物理学 2021-06-30 A. Ross , R. Lebrun , M. Evers , A. Deák , L. Szunyogh , U. Nowak , M. Kläui

A micro-patterned spin Seebeck device is fabricated using an on-chip heater. Current is driven through a Au heater layer electrically isolated from a bilayer consisting of Fe$_3$O$_4$ (insulating ferrimagnet) and a spin detector layer. It…

介观与纳米尺度物理 · 物理学 2015-06-23 Stephen M. Wu , Frank Y. Fradin , Jason Hoffman , Axel Hoffmann , Anand Bhattacharya

Topological magnons emerge as topologically protected spin wave states at the edges of magnets. Here, we theoretically explore how these surface states can be harnessed to amplify the spin Seebeck effect (SSE) in antiferromagnets (AFMs)…

介观与纳米尺度物理 · 物理学 2025-01-16 Feodor Svetlanov Konomaev , Kjetil M. D. Hals

We report the results of a study of magnetic field features of electron transport in heterojunctions with NS boundary inside iron-based superconductors, represented by a binary phase of $\alpha$ - FeSe and oxyarsenide pnictide LaO(F)FeAs.…

超导电性 · 物理学 2015-03-16 M. O. Dzyuba , Yu. N. Chiang , D. A. Chareev , A. N. Vasiliev

Recently, Seebeck coefficients of ferromagnetic conductors are found to be spin-dependent. However straightforward method of accurately determining its spin polarization is still to be developed. Here, we have derived a linear dependence of…

材料科学 · 物理学 2015-05-29 C. Fang , C. H. Wan , Z. H. Yuan , H. Wu , Q. T. Zhang , L. B. Mo , X. Zhang , X. F. Han

We study the charge and spin Seebeck effects in a spin-1 molecular junction as a function of temperature (T), applied magnetic field (H), and magnetic anisotropy (D) using Wilson's numerical renormalization group. A hard-axis magnetic…

强关联电子 · 物理学 2012-07-26 Pablo S. Cornaglia , Gonzalo Usaj , C. A. Balseiro

Due to the spin-orbit coupling (SOC) an electric current flowing in a normal metal or semiconductor can induce a bulk magnetic moment. This effect is known as the Edelstein (EE) or magneto-electric effect. Similarly, in a bulk…

介观与纳米尺度物理 · 物理学 2016-08-08 François Konschelle , Ilya V. Tokatly , F. Sebastián Bergeret

We report on temperature dependent measurements of the Longitudinal Spin Seebeck Effect (LSSE) in the mixed valent manganite La$_{0.7}$Ca$_{0.3}$MnO$_3$. By disentangling the contribution arising due to the Anisotropic Nernst effect, we…

强关联电子 · 物理学 2020-01-15 Avirup De , Arup Ghosh , Rajesh Mandal , Satishchandra Ogale , Sunil Nair

We investigated the magnetic phase diagram of single crystals of SrNdFeO$_{4}$ by measuring the magnetic properties, the specific heat and the dielectric permittivity. The system has two magnetically active ions, Fe$^{3+}$ and Nd$^{3+}$.…

材料科学 · 物理学 2015-06-05 J. M. Hwang , E. S. Choi , H. D. Zhou , Y. Xin , J. Lu , P. Schlottmann

We investigate the thermodynamic properties of FeSe under the in-plane magnetic fields using torque magnetometry, specific heat, magnetocaloric measurements. Below the upper critical field Hc2, we observed the field-induced anomalies at H1…

We investigate theoretically the Seebeck effect in materials close to a ferromagnetic quantum critical point to explain anomalous behaviour at low temperatures. It is found that the main effect of spin fluctuations is to enhance the…

强关联电子 · 物理学 2015-05-13 Takuya Okabe

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…

应用物理 · 物理学 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

We study the spin-Seebeck effect in a strongly interacting, two-component Fermi gas and propose an experiment to measure this effect by relatively displacing spin up and spin down atomic clouds in a trap using spin-dependent temperature…

量子气体 · 物理学 2012-08-10 C. H. Wong , H. T. C. Stoof , R. A. Duine

The longitudinal spin Seebeck effect is measured on the ferromagnetic insulator Fe$_3$O$_4$ with the ferromagnetic metal Co$_{0.2}$Fe$_{0.6}$B$_{0.2}$ (CoFeB) as the spin detector. By using a non-magnetic spacer material between the two…

介观与纳米尺度物理 · 物理学 2014-09-09 Stephen M. Wu , Jason Hoffman , John E. Pearson , Anand Bhattacharya

Resonant enhancement of spin Seebeck effect (SSE) due to phonons was recently discovered in Y3Fe5O12 (YIG). This effect is explained by hybridization between the magnon and phonon dispersions. However, this effect was observed at low…

Compensated ferrimagnets enable ferromagnet-like spin transport without net magnetization. We study the spin Seebeck effect in a compensated ferrimagnet/normal-metal junction using a four-sublattice model in which sublattice inequivalence…

介观与纳米尺度物理 · 物理学 2026-05-12 Xin Theng Lee , Takahiro Misawa , Mamoru Matsuo , Takeo Kato

We theoretically investigate the longitudinal spin Seebeck effect, in which the spin current is injected from a ferromagnet into an attached nonmagnetic metal in a direction parallel to the temperature gradient. Using the fact that the…

材料科学 · 物理学 2013-07-15 Hiroto Adachi , Sadamichi Maekawa

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…

强关联电子 · 物理学 2016-01-06 S. Seki , T. Ideue , M. Kubota , Y. Kozuka , R. Takagi , M. Nakamura , Y. Kaneko , M. Kawasaki , Y. Tokura