Investigations of silicon nano-crystal floating gate memories
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
We report electron paramagnetic resonance experiments in single crystals of the high Tc superconductor YBa2Cu3O7-x. No EPR signal is observed in the spectra of the properly annealed crystals with Tc≅90K. However, we observe a strong, almost isotropic Cu2+ signal in the spectra of the as-grown (unannealed) single crystals with Tc≅40K. The observed signal has a slightly anisotropic g-factor which becomes totally isotropic at T≅90K. The linewidth, dominated by the hyperfine interaction, remains anisotropic at all temperatures, showing that the signal originates from a site which does not have real cubic symmetry. © 1988.
Arvind Kumar, Jeffrey J. Welser, et al.
MRS Spring 2000
Hiroshi Ito, Reinhold Schwalm
JES
M. Hargrove, S.W. Crowder, et al.
IEDM 1998
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids