نتایج جستجو برای: seebeck effect

تعداد نتایج: 1642548  

2014
Shi-Zhuo Wang Ke Xia Gerrit E. W. Bauer

We compute the thermoelectric transport parameterized by the Seebeck coefficient and thermal/electric conductance of random-alloy FeCo/MgO/FeCo(001) magnetic tunnel junctions (MTJs) from first principles using a generalized Landauer-Büttiker formalism. The thermopower is found to be typically smaller than those of Fe/MgO/Fe(001) MTJs. The (magneto-)Seebeck effect is sensitive to the details of ...

2015
Joshua Martin J Martin

In Seebeck coefficient metrology, the present diversity in apparatus design, acquisition methodology and contact geometry has resulted in conflicting materials data that complicate the interlaboratory confirmation of reported high efficiency thermoelectric materials. To elucidate the influence of these factors in the measurement of the Seebeck coefficient at high temperature and to identify opt...

Journal: :Physical review letters 2009
P Olbrich E L Ivchenko R Ravash T Feil S D Danilov J Allerdings D Weiss D Schuh W Wegscheider S D Ganichev

We report on the observation of the Seebeck ratchet effect. The effect is measured in semiconductor heterostructures with a one-dimensional lateral potential excited by terahertz radiation. The photocurrent generation is based on the combined action of a spatially periodic in-plane potential and a spatially modulated light, which gives rise to a modulation of the local temperature. In addition ...

Journal: :Physical Review Letters 2013

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