High-pressure structural analysis of (formula presented) Origin for pressure-induced charge ordering

A. Kuriki, Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, O. Shimomura, A. Nakamura

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1 Citation (Scopus)


Pressure effects on the structural parameters are investigated in a half-doped manganites (formula presented) by means of the synchrotron-radiation x-ray powder diffraction measurement. The compound shows a pressure-induced metal-insulator transition due to the subtle competition between the double-exchange interaction and the charge-ordering instability [Y. Tokura et al., Phys. Rev. Lett. 76, 3184 (1996)]. We have found that application of pressure induces the four-long and two-short deformation of the (formula presented) octahedra. We present a possible scenario for the pressure-induced charge-ordering.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number11
Publication statusPublished - 2002


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