Energy levels and crystal-field parameter calculation for Nd 3+ in Gd3Ga5O12 single crystal
GAO Jin-Yun, ZHANG Qiang-Li, HU Liu-Sen, WEN Jun, JIA Shang-Da, GUO Chang-Xin, YAN Chao-Tang
Chinese Journal of Quantum Electronics . 2011, (2): 218 -229 .