The DX centre
T.N. Morgan
Semiconductor Science and Technology
Two-pulse photon echo electron-nuclear double resonance (or PENDOR) has been used to measure the second-order hyperfine splittings in the ground state and the lowest component of the excited D21 state of YAlO3+. The excited-state splittings are 0.923 and 1.565 MHz and are significantly different from previous hole-burning results because of greatly increased resolution. The mechanism for two-pulse PENDOR involves a modulation of the photon echo decay at the rf Rabi frequency. This modulation has been observed directly. A brief theoretical analysis is given which shows that the echo modulation is a result of phase and amplitude changes in the oscillating opitical dipole moment which are indirectly produced by the rf field. © 1982 The American Physical Society.
T.N. Morgan
Semiconductor Science and Technology
E. Burstein
Ferroelectrics
Douglass S. Kalika, David W. Giles, et al.
Journal of Rheology
U. Wieser, U. Kunze, et al.
Physica E: Low-Dimensional Systems and Nanostructures