Hyperfine EPR Structure of Isotopes 151Eu2+ and 153Eu2+ in Lutetium–Aluminum Garnet

Electron paramagnetic resonance of rhombic Eu2+ centers in single crystals of Lu3Al5O12 doped with europium ions with the natural isotope abundance was studied. Parameters of the hyperfine and quadrupole interactions of 151Eu and 153Eu isotopes of these centers were determined.