TY - JOUR
T1 - Tunnelling between excited 4T2 and 2E states of Cr3+ ions with small energy separation-the case of GSGG
AU - Yamaga, M
AU - Henderson, B
AU - O'Donnell, K P
PY - 1989/11/20
Y1 - 1989/11/20
N2 - A model of 2E to 4T2 tunnelling induced by zero-point vibrations is developed to account for the observed temperature dependence in the photoluminescence spectrum of Cr3+ ions in crystals with small energy separation Delta E=E(2E)-E(4T 2). The model gives good agreement with experimental results for Cr3+ -doped Gd3Sc2Ga3O12, where Delta E=70 cm-1 is smaller than the mean phonon energy h(cross) omega approximately=180 cm-1.
AB - A model of 2E to 4T2 tunnelling induced by zero-point vibrations is developed to account for the observed temperature dependence in the photoluminescence spectrum of Cr3+ ions in crystals with small energy separation Delta E=E(2E)-E(4T 2). The model gives good agreement with experimental results for Cr3+ -doped Gd3Sc2Ga3O12, where Delta E=70 cm-1 is smaller than the mean phonon energy h(cross) omega approximately=180 cm-1.
KW - photoluminescence
KW - crystals
KW - small energy separation
UR - http://www.scopus.com/inward/record.url?scp=36149035419&partnerID=8YFLogxK
UR - http://iopscience.iop.org/journal/0953-8984
U2 - 10.1088/0953-8984/1/46/010
DO - 10.1088/0953-8984/1/46/010
M3 - Article
AN - SCOPUS:36149035419
VL - 1
SP - 9175
EP - 9182
JO - Journal of Physics: Condensed Matter
JF - Journal of Physics: Condensed Matter
SN - 0953-8984
IS - 46
ER -