Characterization of Cu2+ Impurity Ion in K₂SnCl6:Cu Single Crystal

K₂SnClSUB6/SUB single crystals doped with Cu were grown by the evaporation of saturated solution. The electron magnetic resonance (EMR) of the CuSUP2+/SUP ion in the crystal has been investigated by using an X-band spectrometer. The rotation pattern in the crystallographic plane together with spin Hamiltonian parameters of CuSUP2+/SUP ion in K₂SnClSUB6/SUB:Cu single crystal shows that the local site symmetry of the CuSUP2+/SUP ion is cubic at room temperature. The calculated spectroscopic splitting factor g of CuSUP2+/SUP impurity ion is 2.1908(±0.0007). The hyperfine constants of CuSUP2+/SUP impurity ion due to the SUP63/SUPCu and 65Cu isotopes in K₂SnClSUB6/SUB:Cu crystal are 0.83(±0.01)×10SUP−4/SUP cmSUP−1/SUP and 0.89(±0.01)×10SUP−4/SUP cmd, respectively. It turns out that the CuSUP2+/SUP ion substitutes for the KSUP+/SUP ion without any nearby charge compensation.