Universal Behaviors of the Phonon Thermal Conductivity Associated with Charge=Orbital Ordering in Transition-Metal Oxides

Takuro Katsufuji, Tetsuji Okuda, Ryuichi Murata, Tatsuya Kanzaki, Kota Takayama, Tomomasa Kajita

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

We studied the thermal transport properties of transition-metal oxides, which have partially filled t2g orbitals of transition metals and exhibit intriguing phase transitions caused by orbital=charge ordering. We found that the temperature (T) dependence of the phonon thermal conductivity κp exhibits a universal behavior for all compounds; κp(T) decreases with decreasing T above the transition temperature Tc, whereas it is enhanced below Tc. This result implies that orbital=charge ordering in transition-metal oxides can be characterized by a unique T dependence of the phonon thermal conductivity.

Original languageEnglish
Article number013703
Journaljournal of the physical society of japan
Volume85
Issue number1
DOIs
Publication statusPublished - 2016 Jan 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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