ENERGY-TRANSFER FROM TETRAHEDRAL FE3+ SITES TO TM3+ IN GARNETS

Authors
LUPEI V LUPEI A BOULON G BRENIER A PEDRINI C ELEJALDE MJ
Citation
V. Lupei et al., ENERGY-TRANSFER FROM TETRAHEDRAL FE3+ SITES TO TM3+ IN GARNETS, Physical review. B, Condensed matter, 49(10), 1994, pp. 7076-7079
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
49
Issue
10
Year of publication
1994
Pages
7076 - 7079
Database
ISI
SICI code
0163-1829(1994)49:10<7076:EFTFST>2.0.ZU;2-M
Abstract
A very efficient energy transfer from Fe3+ (d tetrahedral sites) to Tm 3+ (c dodecahedral sites) in yttrium aluminum garnet and gadolinium ga llium garnet crystals was observed. The site-selective spectroscopy sh ows that in case of near-neighbor Fe(d)-Tm pairs the transfer efficien cy is 100%. For the other pairs it is less efficient and increases wit h temperature due to a better superposition of Fe3+ emission and H-3(4 ) Tm3+ absorption bands.