[PS-9-9] Electron Spin Lifetime in pnpn-Structured GaAs T. Ito1、H. Sugata2、S. Tanigaki2、M. Ichida2、H. Ando2 (1.Shizuoka Univ.、2.Konan Univ. , Japan) https://doi.org/10.7567/SSDM.2012.PS-9-9