Abstract
The variation of the thermal conductivity κ(T) of RVO3 crystals with the motivation of probing the lattice dynamics associated with the transitions was investigated. It was found that at T>T∞, RVO3 crystals conduct heat like a glass and the phonon contribution to κ(T) was completely suppressed by spin and orbital fluctuations. The orbital ordering in the interval TN<T<T∞ was partially restored due to spin fluctuations. A sharp change of κ(T) at T∞ makes thermal conductivity measurement an alternative method to probe orbital order-disorder transition.
Original language | English |
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Article number | 235901 |
Journal | Physical Review Letters |
Volume | 93 |
Issue number | 23 |
DOIs | |
State | Published - Dec 3 2004 |
Externally published | Yes |