ELECTRON-SPIN RELAXATION OF COPPER(II) IONS IN DIAMAGNETIC CRYSTALS

The electron spin-lattice and spin-spin phase relaxation measurements of Cu2+ ions in various crystals are reviewed and discussed. Examples of the Debye temperature determination from a wide temperature range m easurements of the spin-lattice relaxation time T-1 are shown. An infl uence of the Jahn-Teller dynamics on T-1 is presented. The phase relax ation described by the phase memory time T-M is affected by temperatur e due to the spin packet width modulation by molecular motions. The T- M is anisotropic in crystals and can be different for different hyperf ine lines of an EPR spectrum.