[21p-131-1~6] 10.4 半導体スピントロニクス・超伝導・強相関

▲ [21p-131-6] Spin-orbit interaction of photo-injected long-lived carriers in undoped GaAs quantum wells

〇Haruki Sanada¹、Alexander Stramma¹、Yoji Kunihashi¹、Yusuke Tanaka¹、Hideki Gotoh¹、Koji Onomitsu¹、Makoto Kohda²、Junsaku Nitta²、Tetsuomi Sogawa¹ (1.NTT-BRL、2.Tohoku Univ.)

キーワード：spin-orbit interaction

We carried out time and spatially resolved Kerr rotation measurements to analyze the spin-orbit interaction of carriers with a long spin lifetime observed in undoped GaAs quantum wells. The results revealed that the symmetry of the spin-orbit effective magnetic fields agrees with that of the Dresselhaus SOI of the conduction band electrons.