X. Jiang, R. Wang, et al.
Physical Review Letters
No abstract available.
X. Jiang, R. Wang, et al.
Physical Review Letters
R.M. Macfarlane, F. Tong, et al.
IQEC 1988
M.L. Jones, D.W. Shortt, et al.
Physical Review B
S. Voelker, R.M. Macfarlane
Journal of Luminescence