2007年4月
Antiferromagnetic ordering in Cu2OCl2 studied by the muon spin rotation/relaxation technique
JOURNAL OF PHYSICS-CONDENSED MATTER
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- 巻
- 19
- 号
- 14
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0953-8984/19/14/145275
- 出版者・発行元
- IOP PUBLISHING LTD
We report on muon spin rotation/ relaxation (mu SR) studies of the cuprate mineral melanothallite, Cu2OCl2, over a temperature range between 4.1 and 300 K. This compound has a pyrochlore- like corner- shared OCu4 tetrahedral network with an S = 1/ 2 system. The magnetic susceptibility shows a broad maximum around 140 K and drops at 70 K. In the mu SR measurement, we observed clear muon spin precession spectra below 70 K that is evidence for a long- range magnetic ordered state. However, the time spectra also exhibit exponential damping even in the ordered state, suggesting a possible influence of geometrical frustration in this compound. This renders the need for careful examination of the magnetic structure of the ordered state.
- リンク情報
- ID情報
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- DOI : 10.1088/0953-8984/19/14/145275
- ISSN : 0953-8984
- Web of Science ID : WOS:000245670300076