Electron paramagnetic resonance of Mn2+, VO2+, Cu2+, and xhyphen;ray induced centers in Rb2C2O4thinsp;sdot;thinsp;H2O single crystals

摘要

The electron paramagnetic resonance spectra of Mn2+, VO2+, Cu2+, and xhyphen;ray induced centers in Rb2C2O4thinsp;sdot;thinsp;H2O single crystals are studied at 9.45 GHz and 290 K. The spectra at 77 K show no appreciable change. The ions appear to enter the lattice at interstitial sites. The doublet separations of forbidden hyperfine transitions (Dgr;m=plusmn;1) are studied in Mn2+doped crystals. The xhyphen;ray irradiated single crystals exhibit singlet spectrum and show saturation effect. The spinhyphen;Hamiltonian parameters are evaluated at 290 K.