@article{47d03d9f928e4d40ac28ee6484976286,
title = "Magnon polarons in the spin Peltier effect",
abstract = "We report the observation of anomalous peak structures induced by hybridized magnon-phonon excitation (magnon polarons) in the magnetic field dependence of the spin Peltier effect (SPE) in a Lu2Bi1Fe4Ga1O12 (BiGa:LuIG) with Pt contact. The SPE peaks coincide with magnetic fields tuned to the threshold of magnon-polaron formation, consistent with the previous observation in the spin Seebeck effect. The enhancement of SPE is attributed to the lifetime increase in spin current caused by magnon-phonon hybridization in BiGa:LuIG.",
author = "Reimei Yahiro and Takashi Kikkawa and Rafael Ramos and Koichi Oyanagi and Tomosato Hioki and Shunsuke Daimon and Eiji Saitoh",
note = "Funding Information: We thank K. Uchida, R. Iguchi, H. Arisawa, and Y. Hashimoto for valuable discussions. This work is a part of the research program of ERATO “Spin Quantum Rectification Project” (Grant No. JPMJER1402) from JST; the Grant-in-Aid for Scientific Research on Innovative Area “Nano Spin Conversion Science” (Grant No. JP26103005), Grant-in-Aid for Scientific Research (S) (Grant No. JP19H05600), and Grant-in-Aid for Research Activity Start-up (Grants No. JP19K21031 and No. JP19K21035) from JSPS KAKENHI; JSPS Core-to-Core program “International Research Center for New-Concept Spintronics Devices”; and World Premier International Research Center Initiative (WPI) from MEXT, Japan. K.O. and T.H. acknowledge support from GP-Spin at Tohoku University. T.H. is supported by JSPS through a research fellowship for young scientists (Grant No. JP18J21004). Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = jan,
day = "13",
doi = "10.1103/PhysRevB.101.024407",
language = "English",
volume = "101",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "2",
}