Orbital-Order-Induced Metal-Insulator Transition in [Formula presented]

Bas B. Van Aken, Oana D. Jurchescu, Auke Meetsma, Y. Tomioka, Y. Tokura, Thomas T.M. Palstra*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
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We present evidence that the insulator-to-metal transition in [Formula presented] near [Formula presented] is driven by the suppression of coherent Jahn-Teller distortions, originating from [Formula presented]-type orbital ordering. The orbital-ordered state is characterized by large long-range [Formula presented] distortions below [Formula presented]. Above [Formula presented] we find evidence for coexistence between an orbital-ordered and an orbital-disordered state. This behavior is discussed in terms of electronic phase separation in an orbital-ordered insulating and an orbital-disordered metallic state.

Original languageEnglish
Article number066403
Number of pages1
JournalPhysical review letters
Issue number6
Publication statusPublished - 1 Jan 2003
Externally publishedYes


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