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The magnetic properties of S=12 quasi-one-dimensional-quantum spin system DMACuCl3 in magnetic fields by Osamu Wada; Yasuo Yoshida; Yuji Inagaki; Takayuki Asano; Tatsuya Kawae; Kazuyoshi Takeda; Yoshitami Ajiro is a Materials Science article available to read on EtoBox.

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Magnetic susceptibility wðTÞ of a quasi-one-dimensional S 1⁄4 1 2 quantum spin system DMACuCl 3 (DMA 1⁄4 (CH 3 ) 2 NH 2 ) has been measured in a magnetic field. This compound exhibits a unique magnetization curve MðHÞ. MðHÞ rises with increasing magnetic field up to H c1 1⁄4 2 T, and shows a 1 2 plateau between H c1 and H c2 1⁄4 3:5 T followed by a gradual increase to the saturation at H s 1⁄4 14 T. In the previous studies, the specific heat CðTÞ shows a sharp peak in the low field region for HpH c1 and in the high field region for H c2 pH [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 wðTÞ, the antiferromagnetic ordering in HpH c1 is observed, although its field dependence is inconsistent with that of CðTÞ. The origin of the discrepancy in the two measurements is discussed.

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Author

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

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-8853)

Published

2007

Language

EN

Field

Materials Science (Physical Sciences)