Low temperature specific heat of RMn2 compounds with the hexagonal C14 structure (R=Y, Yb and Th)

Hideto Imai; Hirofumi Wada; Hiroyuki Nakamura; Masayuki Shiga; Kazuko Inoue; Yoji Nakamura; A. V. Tsvyashchenko; L. Formicheva

doi:10.1143/jpsj.66.2175

Low temperature specific heat of RMn₂ compounds with the hexagonal C14 structure (R=Y, Yb and Th)

Hideto Imai, Hirofumi Wada, Hiroyuki Nakamura, Masayuki Shiga, Kazuko Inoue, Yoji Nakamura, A. V. Tsvyashchenko, L. Formicheva

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The specific heat of C14 YMn₂, YbMn₂ and ThMn₂ was measured in the temperature range of 1.4 K to 10 K. The huge values of specific heat were observed for all compounds. The origin of the huge values of specific heat are considered to be derived from two mechanisms. For C14 YMn₂ and ThMn₂, those are ascribed to the excitations of large spin fluctuations of Mn moments. On the other hand, the extraordinary large value of YbMn₂ is due to the paramagnetic Yb moment.

Original language	English
Pages (from-to)	2175-2177
Number of pages	3
Journal	journal of the physical society of japan
Volume	66
Issue number	7
DOIs	https://doi.org/10.1143/jpsj.66.2175
Publication status	Published - Jul 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1143/jpsj.66.2175

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Low temperature specific heat of RMn₂ compounds with the hexagonal C14 structure (R=Y, Yb and Th). / Imai, Hideto; Wada, Hirofumi; Nakamura, Hiroyuki; Shiga, Masayuki; Inoue, Kazuko; Nakamura, Yoji; Tsvyashchenko, A. V.; Formicheva, L.

In: journal of the physical society of japan, Vol. 66, No. 7, 07.1997, p. 2175-2177.

Research output: Contribution to journal › Article › peer-review

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abstract = "The specific heat of C14 YMn2, YbMn2 and ThMn2 was measured in the temperature range of 1.4 K to 10 K. The huge values of specific heat were observed for all compounds. The origin of the huge values of specific heat are considered to be derived from two mechanisms. For C14 YMn2 and ThMn2, those are ascribed to the excitations of large spin fluctuations of Mn moments. On the other hand, the extraordinary large value of YbMn2 is due to the paramagnetic Yb moment.",

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AU - Imai, Hideto

AU - Wada, Hirofumi

AU - Nakamura, Hiroyuki

AU - Shiga, Masayuki

AU - Inoue, Kazuko

AU - Nakamura, Yoji

AU - Tsvyashchenko, A. V.

AU - Formicheva, L.

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AB - The specific heat of C14 YMn2, YbMn2 and ThMn2 was measured in the temperature range of 1.4 K to 10 K. The huge values of specific heat were observed for all compounds. The origin of the huge values of specific heat are considered to be derived from two mechanisms. For C14 YMn2 and ThMn2, those are ascribed to the excitations of large spin fluctuations of Mn moments. On the other hand, the extraordinary large value of YbMn2 is due to the paramagnetic Yb moment.

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