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We present the first thermoelectric measurements on pentacene field effect transistors. We report high values of the Seebeck coefficient at room temperature between 240 and 500 micro V/K depending on the dielectric surface treatment. These…

The nonlocal spin resistance is measured as a function of temperature in a Fe/GaAs spin-injection device. For nonannealed samples that show minority-spin injection, the spin resistance is observed up to room temperature and decays…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 G. Salis , A. Fuhrer , R. R. Schlittler , L. Gross , S. F. Alvarado

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 propose that phonons coupled to electrons play an important role in both the fundamental phenomenology of electron spin resonance as well as the interpretation of such measurements. By including spin-dependent electron-phonon…

Materials Science · Physics 2025-09-10 Sebastian Kalhöfer

The possibility of electrically exciting and detecting magnon currents in magnetic insulators has opened exciting perspectives for transporting spin information in electronic devices. However, the role of the magnetic field and the nonlocal…

Mesoscale and Nanoscale Physics · Physics 2022-01-28 Jialiang Gao , Charles-Henri Lambert , Richard Schlitz , Manfred Fiebig , Pietro Gambardella , Saül Vélez

As spin caloritronic measurements become increasingly common techniques for characterizing material properties, it is important to quantify potentially confounding effects. We report measurements of the Nernst-Ettingshausen response from…

Mesoscale and Nanoscale Physics · Physics 2023-05-17 Renjie Luo , Tanner J. Legvold , Liyang Chen , Douglas Natelson

In weakly spin-orbit coupled materials, the spin-selective nature of recombination can give rise to large magnetic-field effects, for example on electro-luminescence from molecular semiconductors. While silicon has weak spin-orbit coupling,…

Mesoscale and Nanoscale Physics · Physics 2018-02-21 F. Chiodi , S. L. Bayliss , L. Barast , D. Débarre , H. Bouchiat , R. H. Friend , A. D. Chepelianskii

We investigated the effect of pressure on the magnetic and thermoelectric properties of Sr$_{3.1}$Y$_{0.9}$Co$_{4}$O$_{10+\delta }$. The magnetization is reduced with the application of pressure, reflecting the spin-state modification of…

Strongly Correlated Electrons · Physics 2018-08-01 Hidefumi Takahashi , Shintaro Ishiwata , Ryuji Okazaki , Yukio Yasui , Ichiro Terasaki

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…

Mesoscale and Nanoscale Physics · Physics 2018-11-05 Scott A. Bender , Hans Skarsvåg , Arne Brataas , Rembert A. Duine

We report thermal conductivity measurements on single crystals of herbertsmithite, over a wide range of temperatures (0.05-120 K) in magnetic fields up to 15 T. We also report measurements of the thermal Hall effect, found to be vanishingly…

This review provides a comprehensive study of the nonlinear transport properties of magnons, which are electrically emitted or absorbed inside extended YIG films by spin transfer effects via a YIG$\vert$Pt interface. Our purpose is to…

The switching of the magnetization configurations of giant magnetoresistance multilayer stacks not only changes the electric and thermal conductivities, but also the thermopower. We study the magnetotransport and the magneto-thermoelectric…

The temperature dependence of the chirality-induced spin selectivity (CISS) effect can be used to discriminate between different theoretical proposals for the mechanism of the CISS effect. Here we briefly review key experimental results and…

Mesoscale and Nanoscale Physics · Physics 2023-07-11 Seif Alwan , Subhajit Sarkar , Amos Sharoni , Yonatan Dubi

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 show that graphene with Mn adatoms trapped at single vacancies feature spin-dependent Seebeck effect, thus enabling the use of this material for spin caloritronics. A gate potential can be used to tune its thermoelectric properties in a…

Mesoscale and Nanoscale Physics · Physics 2014-02-25 Alberto Torres , Matheus P. Lima , A. Fazzio , Antônio J. R. da Silva

The time-dependent thermopower is analyzed through an interacting quantum dot coupled to a time-dependent gate voltage and under the influence of an external magnetic field using the Keldysh nonequilibrium Green's function formalism. Formal…

Mesoscale and Nanoscale Physics · Physics 2012-06-12 M. Bagheri Tagani , H. Rahimpour Soleimani

The Seebeck coefficient, which is proportional to a ratio of the thermoelectric conductivity to electrical conductivity has been examined for Dirac electrons in the organic conductor $\alpha$-(BEDT-TTF)$_2$I$_3$ [BEDT-TTF denotes a molecule…

Materials Science · Physics 2023-05-11 Yoshikazu Suzumura , Masao Ogata

Many experiments have shown the detection of spin-currents driven by radio-frequency spin pumping from yttrium iron garnet (YIG), by making use of the inverse spin-Hall effect, which is present in materials with strong spin-orbit coupling,…

Mesoscale and Nanoscale Physics · Physics 2016-07-13 Nynke Vlietstra , Fasil K. Dejene , Bart J. van Wees

We investigate the thermoelectric properties of electrons at the interface of oxide heterostructure and in the presence of a multiferroic oxide with spiral spin order. We find there is no (spin) Hall current generated by the temperature…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Chenglong Jia , Jamal Berakdar

The Seebeck coefficient is examined for two-dimensional Dirac electrons in the three-quarter filled organic conductor alpha-(BEDT-TTF)_2I_3 under hydrostatic pressure, where the Seebeck coefficient is proportional to the ratio of the…

Mesoscale and Nanoscale Physics · Physics 2024-04-10 Yoshikazu Suzumura , Takao Tsumuraya , Masao Ogata
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