The magnetic properties of S = frac(1, 2) quasi-one-dimensional-quantum spin system DMACuCl3 in magnetic fields

Osamu Wada, Yasuo Yoshida, Yuji Inagaki, Takayuki Asano, Tatsuya Kawae, Kazuyoshi Takeda, Yoshitami Ajiro

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Abstract

Magnetic susceptibility χ (T) of a quasi-one-dimensional S = frac(1, 2) quantum spin system DMACuCl3 (DMA=(CH3)2NH2) has been measured in a magnetic field. This compound exhibits a unique magnetization curve M (H). M (H) rises with increasing magnetic field up to Hc 1 = 2 T, and shows a frac(1, 2) plateau between Hc 1 and Hc 2 = 3.5 T followed by a gradual increase to the saturation at Hs = 14 T. In the previous studies, the specific heat C (T) shows a sharp peak in the low field region for H ≤ Hc 1 and in the high field region for Hc 2 ≤ H [Y. Yoshida, O. Wada, Y. Inagaki, T. Asano, K. Takeo, T. Kawae, K. Takeda, Y. Ajiro, J. Phys. Soc. Japan 74 (2005) 2917. [1]]. The field dependence of the two peaks, however, is unusual in comparison with that in conventional quantum spin systems investigated so far. In χ (T), the antiferromagnetic ordering in H ≤ Hc 1 is observed, although its field dependence is inconsistent with that of C (T). The origin of the discrepancy in the two measurements is discussed.

Original languageEnglish
Pages (from-to)e384-e386
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - Mar 1 2007

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Magnetic properties
Magnetic fields
magnetic properties
Dynamic mechanical analysis
Magnetic susceptibility
magnetic fields
Specific heat
plateaus
Magnetization
Japan
specific heat
magnetic permeability
saturation
magnetization
curves

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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The magnetic properties of S = frac(1, 2) quasi-one-dimensional-quantum spin system DMACuCl3 in magnetic fields. / Wada, Osamu; Yoshida, Yasuo; Inagaki, Yuji; Asano, Takayuki; Kawae, Tatsuya; Takeda, Kazuyoshi; Ajiro, Yoshitami.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 2, 01.03.2007, p. e384-e386.

Research output: Contribution to journalArticle

Wada, Osamu ; Yoshida, Yasuo ; Inagaki, Yuji ; Asano, Takayuki ; Kawae, Tatsuya ; Takeda, Kazuyoshi ; Ajiro, Yoshitami. / The magnetic properties of S = frac(1, 2) quasi-one-dimensional-quantum spin system DMACuCl3 in magnetic fields. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 2. pp. e384-e386.
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AU - Kawae, Tatsuya

AU - Takeda, Kazuyoshi

AU - Ajiro, Yoshitami

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