[19a-Z19-1~12] 10.4 Semiconductor spintronics, superconductor, multiferroics

▲ [19a-Z19-10] Effect of electronic temperature on spin dynamics for drifting spins

〇Yoji Kunihashi¹, Shuntaro Aragaki¹, Yusuke Tanaka¹, Haruki Sanada¹, Takehiko Tawara¹, Katsuya Oguri¹, Koji Onomitsu¹, Makoto Kohda², Junsaku Nitta², Hideki Gotoh¹ (1.NTT BRL, 2.Tohoku Univ.)

Keywords:Kerr rotation, Monte Carlo simulation, spin-orbit interaction

We report numerically calculated spatial distribution of drifting spins for different electronic temperatures. Electric temperature is taken into account as a consequence of inelastic scattering. We found that spatial period of spin precession becomes longer at higher electronic temperature. This is because enhancement of the cubic Dresselhaus SOI by increase in electronic kinetic energy compensates the effective magnetic field originated from linear term of SOIs. Our results give beneficial knowledge for device application in future spintronics.