Pan Xiao-Jian, Bao Li-Hong, Ning Jun, Zhao Feng-Qi, Chao Luo-Meng, Liu Zi-Zhong. Synthesis and optical absorption properties of nanocrystalline rare earth hexaborides Nd1–xEuxB6 powdersJ. Acta Physica Sinica, 2021, 70(3): 036101. DOI: 10.7498/aps.70.20201288