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The spin Seebeck effect is a spin-motive force generated by a temperature gradient in a ferromagnet that can be detected via normal metal contacts through the inverse spin Hall effect [K. Uchida {\it et al.}, Nature {\bf 455}, 778-781…

材料科学 · 物理学 2010-09-07 Jiang Xiao , Gerrit E. W. Bauer , Ken-ichi Uchida , Eiji Saitoh , Sadamichi Maekawa

Non-equilibrium spin transport through an interacting quantum dot is analyzed. The coherent spin oscillations in the dot provide a generating source for spin current. In the interacting regime, the Kondo effect is influenced in a…

介观与纳米尺度物理 · 物理学 2007-05-23 Ping Zhang , Qi-Kun Xue , X. C. Xie

Weak spin-orbit coupling produces very limited current induced spin accumulation in semiconductor nanostructures. We demonstrate a possibility to increase parametrically the spin polarization using the Kondo effect. As a model object we…

介观与纳米尺度物理 · 物理学 2023-07-26 V. N. Mantsevich , D. S. Smirnov

Using analytical arguments and the numerical renormalization group method we investigate the spin-thermopower of a quantum dot in a magnetic field. In the particle-hole symmetric situation the temperature difference applied across the dot…

介观与纳米尺度物理 · 物理学 2012-02-24 Tomaz Rejec , Rok Zitko , Jernej Mravlje , Anton Ramsak

Conventional and spin-related thermoelectric effects in transport through a magnetic tunnel junction with a large-spin impurity, such as a magnetic molecule or atom, embedded into the corresponding barrier are studied theoretically in the…

介观与纳米尺度物理 · 物理学 2014-11-11 Maciej Misiorny , Józef Barnaś

The spin-resolved thermoelectric transport properties of correlated nanoscale junctions, consisting of a quantum dot/molecule asymmetrically coupled to external ferromagnetic contacts, are studied theoretically in the far-from-equilibrium…

介观与纳米尺度物理 · 物理学 2023-07-21 Anand Manaparambil , Ireneusz Weymann

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…

介观与纳米尺度物理 · 物理学 2023-01-31 Koichi Oyanagi , Saburo Takahashi , Takashi Kikkawa , Eiji Saitoh

We theoretically investigate spin transport at the interface between the ferromagnetic insulator(FI) and a superconductor(SC). Considering a simple FI-SC interface model, we derive formulas for the spin current and spin-current noise…

介观与纳米尺度物理 · 物理学 2019-04-24 T. Kato , Y. Ohnuma , M. Matsuo , J. Rech , T. Jonckheere , T. Martin

Following the theoretical approach by Xiao et al [Phys. Rev. B 81, 214418 (2010)] to the spin Seebeck effect, we calculate the mean value of the total spin current flowing through a normalmetal/ ferromagnet interface. The spin current…

介观与纳米尺度物理 · 物理学 2015-06-17 L. Chotorlishvili , Z. Toklikishvili , V. K. Dugaev , J. Barnas , S. Trimper , J. Berakdar

We present a theoretical study of low temperature nonequilibrium transport through an interacting quantum dot in the presence of Zeeman magnetic field and current injection into one of its leads. By using a self-consistent renormalized…

介观与纳米尺度物理 · 物理学 2017-01-27 Shaon Sahoo , Adeline Crépieux , Mireille Lavagna

The interplay between spin and heat currents at magnetic insulator|nonmagnetic metal interfaces has been a subject of much scrutiny because of both fundamental physics and the promise for technological applications. While ferrimagnetic and,…

介观与纳米尺度物理 · 物理学 2019-06-13 Benedetta Flebus , Yaroslav Tserkovnyak , Gregory A. Fiete

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

Magnetic frustrations can enhance quantum zero-point motion in spin systems and lead to exotic topological insulating states. When coupled to mobile electrons, they may lead to unusual non-Fermi liquid or metallic spin liquid states whose…

强关联电子 · 物理学 2021-12-30 Jiangfan Wang , Yi-feng Yang

The Kondo effect arises from many-body interactions between localized magnetic impurities and conduction electrons, affecting electronic properties at low temperatures. In this study, we investigate the Kondo effect within a two-dimensional…

强关联电子 · 物理学 2025-09-30 T. O. Puel , M. A. Manya , G. S. Diniz , E. Vernek , G. B. Martins

The Kondo effect, deriving from a local magnetic impurity mediating electron-electron interactions, constitutes a flourishing basis for understanding a large variety of intricate many-body problems. Its experimental implementation in…

介观与纳米尺度物理 · 物理学 2023-11-29 C. Piquard , P. Glidic , C. Han , A. Aassime , A. Cavanna , U. Gennser , Y. Meir , E. Sela , A. Anthore , F. Pierre

We investigate spin transport by thermally excited spin waves in an antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert phenomenology, we obtain the out-of-equilibrium spin-wave properties. In linear response to…

介观与纳米尺度物理 · 物理学 2018-11-05 Scott A. Bender , Hans Skarsvåg , Arne Brataas , Rembert A. Duine

We theoretically investigate the thermoelectric and spin thermoelectric properties of a T-shaped double quantum dot strongly coupled to two ferromagnetic leads, focusing on transport regime where the system exhibits the two-stage Kondo…

介观与纳米尺度物理 · 物理学 2017-01-04 Krzysztof P. Wójcik , Ireneusz Weymann

We study the effect of a pure spin current on the Kondo singlet in a diluted magnetic alloy using non-local lateral spin valve structures with highly spin polarized Co2FeSi electrodes. Temperature dependence of the non-local spin signals…

材料科学 · 物理学 2016-11-01 K. Hamaya , T. Kurokawa , S. Oki , S. Yamada , T. Kanashima , T. Taniyama

Using one of the methods of quantum nonequilibrium statistical physics we have investigated the spin transport transverse to the normal metal/ferromagnetic insulator interface in hybrid nanostructures. An approximation of the effective…

介观与纳米尺度物理 · 物理学 2015-06-11 I. I. Lyapilin , M. S. Okorokov , V. V. Ustinov

The recently observed Seebeck spin tunneling, the thermoelectric analog of spin-polarized tunneling, is described. The fundamental origin is the spin dependence of the Seebeck coefficient of a tunnel junction with at least one ferromagnetic…

介观与纳米尺度物理 · 物理学 2012-03-20 R. Jansen , A. M. Deac , H. Saito , S. Yuasa
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