Investigations of silicon nano-crystal floating gate memories
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
At high magnetic fields and low temperatures, 0.02% YLiF4+ is observed to show strongly non-exponential two photon echo decay which becomes independent of the field above 27 kG. We describe the optical dephasing using a computer simulation which takes into account the mutual spin flips of 3000 F host nuclei. The highly nonexponential echo decay results from the "frozen core" of nuclear spins near the large Er3+ magnetic moment, whose spin flip rates are greatly slowed down compared to the unperturbed spins. The simulations predict the echo decay shape and provide a means to estimate the nuclear spin flip rates. The simulation results are compared with theories for the electron spin and photon echo decay. © 1992.
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
A. Reisman, M. Berkenblit, et al.
JES
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
Ellen J. Yoffa, David Adler
Physical Review B