Paramagnetic properties of diamond modified by high energy ion irradiation

Defect production in the Ia-type diamond irradiated with 63 MeV Cu, 26.7 MeV Ne, 335 MeV Ni ions dose 5·1014 cm-2 has been studied. It has been shown that high energy ion irradiation of the diamond leads to the appearance of tracks - quasi-one-dimensional nontetrahedral structures. The singlet EPR line is a measure of these structures and the consequence of resonance absorption of mobile quasi-particles presumably solitons. Spin waves have been registered in the track-like ion-modified structures for the first time. The anisotropy seems to be determined by the anisotropy of the spin wave excitation in the track-like quasi-one-dimensional structures in the diamond studied. (author). 6 refs., 3 figs