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相关论文: Temperature dependence of the interface spin Seebe…

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The time and temperature dependence of the field-cooled magnetization of a three dimensional Ising spin glass, Fe_{0.5}Mn_{0.5}TiO_{3}, has been investigated. The temperature and cooling rate dependence is found to exhibit memory phenomena…

无序系统与神经网络 · 物理学 2009-10-31 T. Jonsson , K. Jonason , P. Nordblad

We theoretically investigate the temperature gradient-dependent or unidirectional Seebeck effect (USE) in a magnetic/ nonmagnetic topological insulator (TI) heterostructure with in-plane magnetization in terms of the semiclassical electron…

介观与纳米尺度物理 · 物理学 2019-11-20 Xiao-Qin Yu , Zhen-Gang Zhu , Gang Su

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

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…

材料科学 · 物理学 2019-07-17 A. I. Bezuglyj , V. A. Shklovskij , V. V. Kruglyak , R. V. Vovk

We report a longitudinal spin Seebeck effect (SSE) study in epitaxially grown FeF2(110) antiferromagnetic (AFM) thin films with strong uniaxial anisotropy over the temperature range of 3.8 - 250 K. Both the magnetic field- and…

材料科学 · 物理学 2019-05-14 Junxue Li , Zhong Shi , Victor H. Ortiz , Mohammed Aldosary , Cliff Chen , Vivek Aji , Peng Wei , Jing Shi

We demonstrate an instrument for time-resolved magnetic imaging that is highly sensitive to the in-plane magnetization state and dynamics of thin-film bilayers of yttrium iron garnet (Y3Fe5O12,YIG)/Pt: the time-resolved longitudinal spin…

The spin-Seebeck effect refers to voltage signals induced in metals by thermally driven spin currents in adjacent magnetic systems. We present a theory of the spin-Seebeck signal in the case where the conductor that supports the voltage…

介观与纳米尺度物理 · 物理学 2017-04-26 Nobuyuki Okuma , Massoud Ramezani Masir , Allan H. MacDonald

Since the discovery of the giant magnetoresistance (GMR) effect the use of the intrinsic angular momentum of the electrons has opened up new spin based device concepts. The two channel model of spin-up and spin-down electrons with…

介观与纳米尺度物理 · 物理学 2014-12-24 F. K. Dejene , J. Flipse , G. E. W. Bauer , B. J. van Wees

Transport and thermoelectric coefficients (including also spin thermopower) of silicene nanoribbons with zigzag edges are investigated by {\it ab-initio} numerical methods. Local spin density of such nanoribbons reveals edge magnetism. Like…

材料科学 · 物理学 2015-06-16 K. Zberecki , M. Wierzbicki , J. Barnaś , R. Swirkowicz

Searching for novel spin caloric effects in antiferromagnets we study the properties of thermally activated magnons in the presence of an external spin current and temperature gradient. We predict the spin Peltier effect -- generation of a…

介观与纳米尺度物理 · 物理学 2018-07-04 Olena Gomonay , Kei Yamamoto , Jairo Sinova

We address the temperature influence on the precessional motion of electron spins under transverse magnetic field, studied in a GaAs/AlGaAs triple quantum wells, using pump-probe Kerr rotation. In the presence of an applied in-plane…

介观与纳米尺度物理 · 物理学 2018-05-18 S. Ullah , F. C. D. Moraes , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

The spin-Seebeck effect (SSE) in platinum (Pt) and tantalum (Ta) on yttrium iron garnet (YIG) has been investigated by both externally heating the sample (using an on-chip Pt heater on top of the device) as well as by current-induced…

介观与纳米尺度物理 · 物理学 2014-12-01 N. Vlietstra , M. Isasa , J. Shan , J. Ben Youssef , F. Casanova , B. J. van Wees

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…

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

Spin transfers in magnetic multilayers offers a promising pathway toward ultrafast, energy-efficient spintronic devices. In this study, we investigate the interfacial spin pumping and temperature-dependent spin current exchange in a…

介观与纳米尺度物理 · 物理学 2026-02-02 Mahammad Tahir , Swati Pandey , Sourabh Manna , Rajdeep Singh Rawat , Rohit Medwal , Soumik Mukhopadhyay

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…

材料科学 · 物理学 2016-08-04 Z. Qiu , D. Hou , K. Uchida , E. Saitoh

Creating temperature gradients in magnetic nanostructures has resulted in a new research direction, i.e., the combination of magneto- and thermoelectric effects. Here, we demonstrate the observation of one important effect of this class:…

The key physics of the spin valve involves spin-polarized conduction electrons propagating between two magnetic layers such that the device conductance is controlled by the relative magnetization orientation of two magnetic layers. Here, we…

介观与纳米尺度物理 · 物理学 2018-04-04 H. Wu , L. Huang , C. Fang , B. S. Yang , C. H. Wan , G. Q. Yu , J. F. Feng , H. X. Wei , X. F. Han

The temperature dependence of magneto current in the spin spin valve transistor system is theoretically explored based on phenomenological model. We find that the collector current strongly depends on the relative orientation of magnetic…

凝聚态物理 · 物理学 2016-08-31 Jisang Hong , P. S. Anil Kumar

We study the Seebeck effect in the $\tau$-type organic conductors, $\tau$-(EDO-$S$,$S$-DMEDT-TTF)$_{2}$(AuBr$_{2}$)$_{1+y}$ and $\tau$-(P-$S$,$S$-DMEDT-TTF)$_{2}$(AuBr$_{2}$)$_{1+y}$, where EDO-$S$,$S$-DMEDT-TTF and P-$S$,$S$-DMEDT-TTF are…