Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - The structure of mixed fluorides Ca1−x SrxF2 and Sr1−x BaxF2 and the luminescence of Eu2+ in these crystals
AU - Nikiforov, A. E.
AU - Zakharov, A. Yu.
AU - Chernyshev, V. A.
AU - Ugryumov, M. Yu.
AU - Kotomanov, S. V.
N1 - This study was financially supported through grant REC 005 (CRDF).
PY - 2003/5/1
Y1 - 2003/5/1
N2 - The structure of the mixed fluorites Ca1-xSrxF2 and Sr1-xBaxF2, as well as the structure of the Eu2+ impurity center in these crystals, is calculated within the framework of the virtual-crystal method realized in the shell model and pair-potential approximation. The phenomenological dependence of the position of the lower level of the 4f65d configuration of the Eu2+ ion on distance to the Eu2+-ligand is derived. The dependences of the Stokes shift and the Huang-Rhys factor on x are calculated for the yellow luminescence in Sr1-xBaxF2:Eu2+. The value of x at which the lower level of the 4f65d configuration of the Eu2+ ion in Sr1-xBaxF2:Eu2+ falls within the conduction band is found.
AB - The structure of the mixed fluorites Ca1-xSrxF2 and Sr1-xBaxF2, as well as the structure of the Eu2+ impurity center in these crystals, is calculated within the framework of the virtual-crystal method realized in the shell model and pair-potential approximation. The phenomenological dependence of the position of the lower level of the 4f65d configuration of the Eu2+ ion on distance to the Eu2+-ligand is derived. The dependences of the Stokes shift and the Huang-Rhys factor on x are calculated for the yellow luminescence in Sr1-xBaxF2:Eu2+. The value of x at which the lower level of the 4f65d configuration of the Eu2+ ion in Sr1-xBaxF2:Eu2+ falls within the conduction band is found.
UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000182730700009
UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=0038697396
U2 - 10.1134/1.1575324
DO - 10.1134/1.1575324
M3 - Article
VL - 45
SP - 864
EP - 867
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 5
ER -
ID: 44068580