THE ORIGIN OF DOMINATING ESR ABSORPTION IN ION-IMPLANTED DIAMOND

Detailed ESR studies in diamond single crystals implanted with high-en ergy ions of copper, neon and nickel have been performed. A new idea o f the origin of the dominating ESR absorption in implanted diamond sin gle crystals as conditioned by the resonance absorption by mobile quas iparticles is confirmed and developed. Mobile quasiparticles are assig ned tentatively to topological soli tons like to those described by Su , Schrieffer, Heeger in trans-polyacetylene. The spin waves have been observed for the first time at room temperature in diamond single crys tals implanted by high-energy ions. The observed spin waves represent a new kind of elementary excitations as being produced by the spin sys tem of mobile quasiparticles (solitons). The Mott-Hubbard metal-insula tor transition (side by side with that of Peierls) must be taken into consideration in the explanation of the physical properties of quasi-1 D carbon structures produced in diamond single crystals as a result of high-energy implantation. The substutional anisotropy of the ESR spec tra in relation to the magnetic component H-1 of the microwave field a ccompanied by the appearance of additional lines has been found for th e first time in implanted diamond single crystals. The given anisotrop y seems to be determined by the anisotropy of the excitation of quasip articles including spin wave quanta in track-like quasi-one-dimensiona l structures of the samples studied.