Host isotope mass effects on the hyperfine interaction of group-V donors in silicon

Autor: Sekiguchi, T., Tyryshkin, A. M., Tojo, S., Abe, E., Mori, R., Riemann, H., Abrosimov, N. V., Becker, P., Pohl, H. -J., Ager, J. W., Haller, E. E., Thewalt, M. L. W., Morton, J. J. L., Lyon, S. A., Itoh, K. M.
Rok vydání: 2014
Předmět:
Zdroj: Phys. Rev. B 90, 121203 (2014)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevB.90.121203
Popis: The effects of host isotope mass on the hyperfine interaction of group-V donors in silicon are revealed by pulsed electron nuclear double resonance (ENDOR) spectroscopy of isotopically engineered Si single crystals. Each of the hyperfine-split P-31, As-75, Sb-121, Sb-123, and Bi-209 ENDOR lines splits further into multiple components, whose relative intensities accurately match the statistical likelihood of the nine possible average Si masses in the four nearest-neighbor sites due to random occupation by the three stable isotopes Si-28, Si-29, and Si-30. Further investigation with P-31 donors shows that the resolved ENDOR components shift linearly with the bulk-averaged Si mass.
Comment: 5 pages, 4 figures, 1 table
Databáze: arXiv