Nonlocal thermoelectric effects in high-field superconductor-ferromagnet hybrid structures

J. Heidrich; D. Beckmann

doi:10.1103/PhysRevB.100.134501

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Nonlocal thermoelectric effects in high-field superconductor-ferromagnet hybrid structures

J. Heidrich, D. Beckmann

DOI 10.1103/PhysRevB.100.134501 · Physical Review B

T1

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Abstract

We report on the experimental observation of nonlocal spin-dependent thermoelectric effects in superconductor-ferromagnet multiterminal structures. Our samples consist of a thin superconducting aluminum wire with several ferromagnetic tunnel junctions attached to it. When a thermal excitation is applied to one of the junctions in the presence of a Zeeman splitting of the density of states of the superconductor, a thermoelectric current is observed in remote junctions at distances exceeding 10μm. The results can be explained by recent theories of coupled spin and heat transport in high-field superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.44	Pressure not reported	onset
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.46	Pressure not reported	onset
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.47	Pressure not reported	onset
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.48	Pressure not reported	onset