ANTIFERRODISTORTIVE STRUCTURAL PHASE-TRANSITION IN THE JAHN-TELLER SYSTEM DYKMO2O8 .1. RAMAN-SCATTERING AND INFRARED-ABSORPTION STUDIES
A cooperative Jahn-Teller effect is observed in the orthorhombic layered rare-earth compound DyKMoO at T=14.3 K. Raman and infrared spectra show a mode near 30 cm at 2 K which decreases in energy in a mean-field fashion with increasing temperature up to T. The Raman spectra show also a well defined...
| Autori principali: | , , |
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| Natura: | Journal article |
| Pubblicazione: |
1987
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