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Ultima descărcare din IBN: 2022-07-19 14:06 |
SM ISO690:2012 BECKMANN, D., KOLENDA, S., HEIDRICH, J., WOLF, M., SÜRGERS, C.. Spin-dependent thermoelectric effects in superconductor/ferromagnet hybrid structures. In: NANO-2019: Limits of Nanoscience and Nanotechnologies, Ed. 2019, 24-27 septembrie 2019, Chişinău. Chișinău, Republica Moldova: 2019, p. 36. |
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NANO-2019: Limits of Nanoscience and Nanotechnologies 2019 | ||||||
Conferința "SPINTECH Summer school “S/F Hybrid Structures for Spintronics”" 2019, Chişinău, Moldova, 24-27 septembrie 2019 | ||||||
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Pag. 36-36 | ||||||
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We report on the experimental observation of spin-dependent thermoelectric effects in superconductor-ferromagnet tunnel junctions in high magnetic fields. The thermoelectric signals are due to a spin-dependent lifting of particle-hole symmetry on the energy scale of the superconducting gap. Due to the small energy scale, the thermoelectric effects can be quite large, and we infer a maximum Seebeck coefficient of about 100 μV/K from our data. The thermoelectric signals can be further enhanced by an exchange splitting induced by the proximity effect with a ferromagnetic insulator. Nonlocal thermoelectric effects elucidate the coupling of spin and heat transport in high-field superconductors. |
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