Kimling, Johannes Choi, Gyung-Min Brangham, Jack T. Matalla-Wagner, Tristan Huebner, Torsten Kuschel, Timo Yang, Fengyuan Cahill, David G. 2024-01-20T02:04:01Z 2024-01-20T02:04:01Z 2021-09-01 2017-02-01 0031-9007 https://pubs.kist.re.kr/handle/201004/123084 We report time-resolved magneto-optic Kerr effect measurements of the longitudinal spin Seebeck effect in normal metal/Y3Fe5O12 bilayers driven by an interfacial temperature difference between electrons and magnons. The measured time evolution of spin accumulation induced by laser excitation indicates transfer of angular momentum across normal metal/Y3Fe5O12 interfaces on a picosecond time scale, too short for contributions from a bulk temperature gradient in an yttrium iron garnet. The product of spin-mixing conductance and the interfacial spin Seebeck coefficient determined is of the order of 10(8) Am-2K-1. English AMER PHYSICAL SOC GADOLINIUM GALLIUM GARNET YIG ULTRASONICS Picosecond Spin Seebeck Effect Article 10.1103/PhysRevLett.118.057201 1 PHYSICAL REVIEW LETTERS, v.118, no.5 PHYSICAL REVIEW LETTERS 118 5 scie scopus 000396414800005 2-s2.0-85012940868 Physics, Multidisciplinary Physics Article GADOLINIUM GALLIUM GARNET YIG ULTRASONICS Spin Seebeck effect