Studies on the axial shift and the spin Hamiltonian parameters for Cr+ in BeOBo-Tao Song, Shao-Yi Wu, Min-Quan Kuang and Zhi-Hong ZhangEur. Phys. J. Appl. Phys., 61 3 (2013) 30601DOI: https://doi.org/10.1051/epjap/2013120313