Charge Ordering and Spin Frustration in [Formula presented]

K. Matsuno, T. Katsufuji, S. Mori, Minoru Nohara, A. Machida, Y. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Kitazawa, H. Takagi

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Abstract

The relationship between charge and spin degrees of freedom in a geometrically frustrated system, [Formula presented] spinel, is investigated. Upon Cr doping, the charge-ordered phase of [Formula presented] is rapidly suppressed and a charge-disordered phase grows up instead. It is found that the magnetic ground state is a spin-glass state dominated by geometrical frustration for both phases, but larger spin entropy remains down to low temperatures in the charge-ordered phase, possibly owing to its two-dimensional character.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Volume90
Issue number9
DOIs
Publication statusPublished - Jan 1 2003
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Matsuno, K., Katsufuji, T., Mori, S., Nohara, M., Machida, A., Moritomo, Y., Kato, K., Nishibori, E., Takata, M., Sakata, M., Kitazawa, K., & Takagi, H. (2003). Charge Ordering and Spin Frustration in [Formula presented] . Physical Review Letters, 90(9). https://doi.org/10.1103/PhysRevLett.90.096404