Физика Низких Температур: Том 47, Выпуск 8 (Август 2021), c. 675-702 ( к оглавлению , назад )
Magnon-phonon interactions in spin insulators (Review Article)
V. A. Shklovskij
V. N. Karazin Kharkiv National University, Kharkiv 61022, Ukraine
Received March 1, 2021, published online June 25, 2021
This review presents the results about spin caloritronics obtained at the Department of Low Temperature Physics of the Kharkiv National University from 2017 to 2019 years. Several new directions in magneto-electronics: spintronics, spin caloritronics and magnonics, which emerged with the aim to reduce the energy dissipation in devices of usual semiconductor microelectronics, are discussed. Spintronic devices hold the promise of faster switching speeds, less total energy consumption, and higher density of circuit elements, lowering the heat production per switching element. Then the main results of the four papers published in Physical Review B are discussed: nonlinear relaxation between magnons and phonons in insulating ferromagnets; role of magnons and the size effect in heat transport through an insulating ferromagnet-insulator interface; spin Seebeck effect and pho-non energy transfer in heterostructures containing layers of normal metal and ferroinsulator; temperature de-pendence of the magnon-phonon energy relaxation time in a ferromagnet insulator.
Key words: spintronics, spin caloritronics, magnonics, magnon, phonon, spin insulator.