Transport signatures of percolation and electronic phase homogeneity in La1-x Srx CoO3 single crystals

C. He, S. El-Khatib, S. Eisenberg, M. Manno, J. W. Lynn, H. Zheng, J. F. Mitchell, C. Leighton

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The influence of nanoscopic magnetoelectronic phase separation on electrical transport in La1-x Srx CoO3 crystals is reported. It is demonstrated; (i) that the T=0 metal-insulator transition can be quantitatively understood using double exchange-modified percolation theory, and, (ii) that the onset of a phase-pure low T ferromagnetic state at high x has a profound effect on the high T transport due to a crossover in the nature of the spin fluctuations. It is concluded that many features of the transport in La1-x Srx CoO3 can be thoroughly understood based on our current understanding of the phase-separated state.

Original languageEnglish (US)
Article number222511
JournalApplied Physics Letters
Volume95
Issue number22
DOIs
StatePublished - Dec 18 2009

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Transport signatures of percolation and electronic phase homogeneity in La1-x Srx CoO3 single crystals. / He, C.; El-Khatib, S.; Eisenberg, S.; Manno, M.; Lynn, J. W.; Zheng, H.; Mitchell, J. F.; Leighton, C.

In: Applied Physics Letters, Vol. 95, No. 22, 222511, 18.12.2009.

Research output: Contribution to journalArticle

He, C. ; El-Khatib, S. ; Eisenberg, S. ; Manno, M. ; Lynn, J. W. ; Zheng, H. ; Mitchell, J. F. ; Leighton, C. / Transport signatures of percolation and electronic phase homogeneity in La1-x Srx CoO3 single crystals. In: Applied Physics Letters. 2009 ; Vol. 95, No. 22.
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