ELECTRIC-FIELD EFFECT IN A MIXED-VALENCE ION-PAIR CR3-CR2+ IN A KZNF3CRYSTAL()

Authors
NIKITIN SI YUSUPOV RV EREMIN MV SILKIN NI PROSVIRNIN SY
Citation
Si. Nikitin et al., ELECTRIC-FIELD EFFECT IN A MIXED-VALENCE ION-PAIR CR3-CR2+ IN A KZNF3CRYSTAL(), JETP letters, 68(2), 1998, pp. 160-162
Citations number
1
Categorie Soggetti
Physics
Journal title
JETP letters → ACNP
ISSN journal
00213640
Volume
68
Issue
2
Year of publication
1998
Pages
160 - 162
Database
ISI
SICI code
0021-3640(1998)68:2<160:EEIAMI>2.0.ZU;2-4
Abstract
The influence of an external axial electric field on the absorption sp ectrum of a Cr3+-Cr2+ mixed-valence pair center coupled by the double- exchange mechanism in a KZnF3 crystal is investigated. It is shown exp erimentally that the Cr3+-Cr2+ pair has an electric dipole moment. The migration of an electron is accompanied by local lattice strain. At t he minima of the adiabatic potential, the intermediate fluorine atom i s displaced from the lattice site. (C) 1998 American Institute of Phys ics.