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: ジャーナルへの寄稿記事

1 引用 (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.

元の言語英語
記事番号054716
ジャーナルjournal of the physical society of japan
83
発行部数5
DOI
出版物ステータス出版済み - 5 15 2014

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magnetic fields
heat measurement
phase diagrams
specific heat
nuclear magnetic resonance

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Unusual magnetic ordering observed in nanosized S = 1/2 quantum spin system (CH3)2NH2CuCl3. / Inagaki, Yuji; Sakamoto, Yasutaka; Morodomi, Hiroki; Kawae, Tatsuya; Yoshida, Yasuo; Asano, Takayuki; Hosoi, Kohei; Kobayashi, Hirokazu; Kitagawa, Hiroshi; Ajiro, Yoshitami; Furukawa, Yuji.

:: journal of the physical society of japan, 巻 83, 番号 5, 054716, 15.05.2014.

研究成果: ジャーナルへの寄稿記事

Inagaki, Y, Sakamoto, Y, Morodomi, H, Kawae, T, Yoshida, Y, Asano, T, Hosoi, K, Kobayashi, H, Kitagawa, H, Ajiro, Y & Furukawa, Y 2014, 'Unusual magnetic ordering observed in nanosized S = 1/2 quantum spin system (CH3)2NH2CuCl3', journal of the physical society of japan, 巻. 83, 番号 5, 054716. https://doi.org/10.7566/JPSJ.83.054716
Inagaki, Yuji ; Sakamoto, Yasutaka ; Morodomi, Hiroki ; Kawae, Tatsuya ; Yoshida, Yasuo ; Asano, Takayuki ; Hosoi, Kohei ; Kobayashi, Hirokazu ; Kitagawa, Hiroshi ; Ajiro, Yoshitami ; Furukawa, Yuji. / Unusual magnetic ordering observed in nanosized S = 1/2 quantum spin system (CH3)2NH2CuCl3. :: journal of the physical society of japan. 2014 ; 巻 83, 番号 5.
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abstract = "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.",
author = "Yuji Inagaki and Yasutaka Sakamoto and Hiroki Morodomi and Tatsuya Kawae and Yasuo Yoshida and Takayuki Asano and Kohei Hosoi and Hirokazu Kobayashi and Hiroshi Kitagawa and Yoshitami Ajiro and Yuji Furukawa",
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AU - Inagaki, Yuji

AU - Sakamoto, Yasutaka

AU - Morodomi, Hiroki

AU - Kawae, Tatsuya

AU - Yoshida, Yasuo

AU - Asano, Takayuki

AU - Hosoi, Kohei

AU - Kobayashi, Hirokazu

AU - Kitagawa, Hiroshi

AU - Ajiro, Yoshitami

AU - Furukawa, Yuji

PY - 2014/5/15

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