[19p-P06-1~50] 10 Spintronics and Magnetics (Poster)

[19p-P06-19] Ab-initio insights into orbital Hall conductivity for binary alloys

〇Yushi Tsujide¹, Kenji Nawa^1,2, Kohji Nakamura¹ (1.Mie Univ., 2.NIMS)

Keywords:

orbital current,orbital Hall effect,spin current

The orbital Hall effect (OHE), in which orbital-polarized electrons flow in a solid, has been extensively studied for potential applications in spin-orbitronics devices. In this presentation, we report the results of our analysis to understand the one-to-one correspondence between OHE and band structure. As a result, the band structure analysis by first-principles calculations reveals that the orbital hole conductivity of Ru_1-xPt_x alloys behaves approximately as a rigid band, which is like that of spin Hall conductivity.