Unusual magnetic ordering observed in nanosized S = 1/2 quantum spin system (CH3)2NH2CuCl3

Yuji Inagaki, Yasutaka Sakamoto, Hiroki Morodomi, Tatsuya Kawae, Yasuo Yoshida, Takayuki Asano, Kohei Hosoi, Hirokazu Kobayashi, Hiroshi Kitagawa, Yoshitami Ajiro, Yuji Furukawa

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

Specific heat measurements were performed on nanometer-sized particles of an S = 1/2 quantum spin system, DMACuCl3 [DMA = (CH3)2NH2]. A tiny peak was observed at a low temperature of approximately 1.5K at zero magnetic field, in addition to a well-defi ned and commonly observed peak with the bulk system at approximately 0.8 K. Under magnetic fields, it increased in intensity and coincided with the phase boundary responsible for the field-induced magnetic ordering phase above about 6 T. 1H-NMR studies confirmed that such extra peaks also indicated magnetic ordering. The resultant phase diagram is considerably different from that observed previously in the bulk system. Such a difference may be caused by the presence of extra spins found in a nanosized system by ESR measurements.

本文言語英語
論文番号054716
ジャーナルjournal of the physical society of japan
83
5
DOI
出版ステータス出版済み - 5 15 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

フィンガープリント 「Unusual magnetic ordering observed in nanosized S = 1/2 quantum spin system (CH<sub>3</sub>)<sub>2</sub>NH<sub>2</sub>CuCl<sub>3</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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