Antiferromagnetic ordering in the expanded (NH3)Rb3C60 fulleride

J. Arvanitidis*, K. Papagelis, T. Takenobu, I. Margiolaki, K. Brigatti, K. Prassides, Y. Iwasa, A. Lappas

*この研究の対応する著者

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The magnetic behavior of the ammoniated alkali fulleride (NH3)Rb3C60 is studied by means of μ+ spin relaxation (μ+SR) spectroscopy. The observation of a strongly damped oscillating component in the low-temperature zero-field μ+SR spectra reveals that its ground state is that of an ordered antiferromagnet, characterized by large spatially inhomogeneous effects. The temperature dependence of the μ+ spin precession frequency is consistent with that of a conventional 3D Heisenberg antiferromagnet (TN ∼ 51 K). The cooling rate of the sample affects sensitively the ordering of the magnetic moments, a behavior that can be attributed to the influence of the orientational order of the fullerene units on the exchange interactions.

本文言語English
ページ(範囲)572-576
ページ数5
ジャーナルPhysica B: Condensed Matter
326
1-4
DOI
出版ステータスPublished - 2003 2月
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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