Phase transition and magnetic structure of pyrochlore oxide Cd 2Os2O7

J. Yamaura, H. Ohsumi, K. Sugimoto, S. Tsutsui, Y. Yoda, S. Takeshita, A. Tokuda, S. Kitao, M. Kurokuzu, M. Seto, I. Yamauchi, K. Ohgushi, M. Takigawa, T. Arima, Z. Hiroi

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4 Citations (Scopus)

Abstract

The 5d transition metal oxide Cd2Os2O7 having a pyrochlore lattice of Os atoms exhibits a metal-insulator transition with a magnetic ordering at 227 K, but the magnetic structure in the ordered state and the origin of the transition have not yet been specified. The commensurate magnetic reflection with the propagation vector k (0, 0, 0) was first observed in the resonant X-ray scattering using a high-quality single crystal. We also clarified the only one kind of magnetic moment via the synchrotron radiation-based Mössbauer effect. We propose that a strong spin-orbit interaction is notably apparent in the spin arrangement and the insulating mechanism in this compound.

Original languageEnglish
Article number012112
JournalJournal of Physics: Conference Series
Volume391
Issue number1
DOIs
Publication statusPublished - 2012 Jan 1
Externally publishedYes
EventInternational Conference on Strongly Correlated Electron Systems, SCES 2011 - Cambridge, United Kingdom
Duration: 2011 Aug 292011 Sep 3

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yamaura, J., Ohsumi, H., Sugimoto, K., Tsutsui, S., Yoda, Y., Takeshita, S., Tokuda, A., Kitao, S., Kurokuzu, M., Seto, M., Yamauchi, I., Ohgushi, K., Takigawa, M., Arima, T., & Hiroi, Z. (2012). Phase transition and magnetic structure of pyrochlore oxide Cd 2Os2O7. Journal of Physics: Conference Series, 391(1), [012112]. https://doi.org/10.1088/1742-6596/391/1/012112