نتایج جستجو برای: seebeck effect

تعداد نتایج: 1642548  

2009
J. Cao W. Fan H. Zheng J. Wu

We report on measurements of Seebeck effect in single-crystal VO2 microbeams across their metal-insulator phase transition. One-dimensionally aligned metal-insulator domain walls were reversibly created and eliminated along single VO2 beams by varying temperature, which allows for accurate extraction of the net contribution to the Seebeck effect from these domain walls. We observed significantl...

Journal: :Physical review letters 2016
Stephen M Wu Wei Zhang Amit Kc Pavel Borisov John E Pearson J Samuel Jiang David Lederman Axel Hoffmann Anand Bhattacharya

We report on the observation of the spin Seebeck effect in antiferromagnetic MnF_{2}. A device scale on-chip heater is deposited on a bilayer of MnF_{2} (110) (30  nm)/Pt (4 nm) grown by molecular beam epitaxy on a MgF_{2} (110) substrate. Using Pt as a spin detector layer, it is possible to measure the thermally generated spin current from MnF_{2} through the inverse spin Hall effect. The low ...

2013
Hiroto Adachi Ken-ichi Uchida Eiji Saitoh Sadamichi Maekawa

The spin Seebeck effect refers to the generation of a spin voltage caused by a temperature gradient in a ferromagnet, which enables the thermal injection of spin currents from the ferromagnet into an attached nonmagnetic metal over a macroscopic scale of several millimeters. The inverse spin Hall effect converts the injected spin current into a transverse charge voltage, thereby producing elect...

2015
Peijie Sun Beipei Wei Jiahao Zhang Jan M. Tomczak A.M. Strydom M. Søndergaard Bo B. Iversen Frank Steglich

The Seebeck effect describes the generation of an electric potential in a conducting solid exposed to a temperature gradient. In most cases, it is dominated by an energy-dependent electronic density of states at the Fermi level, in line with the prevalent efforts towards superior thermoelectrics through the engineering of electronic structure. Here we demonstrate an alternative source for the S...

2015
Daniel Meier Daniel Reinhardt Michael van Straaten Christoph Klewe Matthias Althammer Michael Schreier Sebastian T B Goennenwein Arunava Gupta Maximilian Schmid Christian H Back Jan-Michael Schmalhorst Timo Kuschel Günter Reiss

The spin Seebeck effect, the generation of a spin current by a temperature gradient, has attracted great attention, but the interplay over a millimetre range along a thin ferromagnetic film as well as unintended side effects which hinder an unambiguous detection have evoked controversial discussions. Here, we investigate the inverse spin Hall voltage of a 10 nm thin Pt strip deposited on the ma...

Journal: :Physical Review Letters 2017

Journal: :Journal of Physics D: Applied Physics 2019

Journal: :Physical review 2021

We present a theory of the non-linearities spin Seebeck effect (SSE) in ferromagnetic nanowire at cryogenic temperatures. adopt microscopic quantum noise model based on collection two-level systems. At certain positions Pt detectors to wire, transverse SSE changes sign as function temperature and/or gradient. On other hand, longitudinal does not show significant even far outside regime validity...

Journal: :Physical Review Letters 2015

Journal: :Physical Review Letters 2016

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