Microscopic magnetic and structural nature of spinel Li [Lix Mn2-x] O4

J. Sugiyama, K. Mukai, Y. Ikedo, P. L. Russo, T. Suzuki, I. Watanabe, J. H. Brewer, E. J. Ansaldo, K. H. Chow, K. Ariyoshi, T. Ohzuku

研究成果: Article査読

21 被引用数 (Scopus)

抄録

The magnetic nature of the spinel antiferromagnet Li [Lix Mn2-x] O4 with x=0-0.15 has been studied with muon-spin rotation and relaxation (μ+ SR) spectroscopy. Both weak-transverse-field and zero-field μ+ SR measurements indicate that the whole sample enters into a static disordered magnetic phase below TN for all the samples measured; TN =61 K for LiMn2 O4, but 27-23 K for the x=0.05-0.15 samples. It was also clarified that both the field distribution width and the field fluctuation rate show a clear change at the Jahn-Teller (JT) transition temperature (TJT =280 K) for LiMn2 O4, and a short-range cooperative JT distortion appears below 280 K even for Li [Li0.15 Mn1.85] O4.

本文言語English
論文番号174424
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
75
17
DOI
出版ステータスPublished - 2007 5 17
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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