Electrical and magnetic properties of a single crystal UCu 2Si2

Tatsuma D. Matsuda; Yoshinori Haga; Shugo Ikeda; Andrei Galatanu; Etsuji Yamamoto; Hiroaki Shishido; Mineko Yamada; Jun Ichi Yamaura; Masato Hedo; Yoshiya Uwatoko; Takuya Matsumoto; Toshiya Tada; Satoru Noguchi; Toyonari Sugimoto; Keitaro Kuwahara; Kazuaki Iwasa; Masahumi Kohgi; Rikio Settai; Yoshichika Onuki

doi:10.1143/JPSJ.74.1552

Electrical and magnetic properties of a single crystal UCu ₂Si₂

Tatsuma D. Matsuda, Yoshinori Haga, Shugo Ikeda, Andrei Galatanu, Etsuji Yamamoto, Hiroaki Shishido, Mineko Yamada, Jun Ichi Yamaura, Masato Hedo, Yoshiya Uwatoko, Takuya Matsumoto, Toshiya Tada, Satoru Noguchi, Toyonari Sugimoto, Keitaro Kuwahara, Kazuaki Iwasa, Masahumi Kohgi, Rikio Settai, Yoshichika Onuki

SCI - Physics

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

22 Citations (Scopus)

Abstract

We have succeeded in growing a high-quality single crystal of UCu ₂Si₂ with the tetragonal structure by the Sn-flux method and measured the electrical resistivity, magnetic susceptibility, magnetization and specific heat. UCu₂Si₂ is found to order antiferromagnetically below T_N = 106 K, and follows a successive ferromagnetic ordering at T_C = 100 K. The magnetic properties are highly anisotropic, reflecting the crystal structure. An easy-axis of magnetization is found to be the [001] direction (c-axis) both in the antiferromagnetic and ferromagnetic phases, while the [100] direction (a-axis) corresponds to the hard-axis in magnetization. The magnetization curve in the antiferromagnetic phase indicates a clear metamagnetic transition at a low field of about 1 kOe and changes into a ferromagnetic magnetization curve below T_C = 100 K. The saturation moment is determined as 1.75 μ_B/U at 2 K. The electronic specific heat coefficient is also determined as 20 mJ/(K²·mol).

Original language	English
Pages (from-to)	1552-1556
Number of pages	5
Journal	journal of the physical society of japan
Volume	74
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.74.1552
Publication status	Published - 2005 May 1

Keywords

Flux method
Ising-type ferromagnetism
Single crystal growth
UCuSi

ASJC Scopus subject areas

Physics and Astronomy(all)

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Matsuda, T. D., Haga, Y., Ikeda, S., Galatanu, A., Yamamoto, E., Shishido, H., Yamada, M., Yamaura, J. I., Hedo, M., Uwatoko, Y., Matsumoto, T., Tada, T., Noguchi, S., Sugimoto, T., Kuwahara, K., Iwasa, K., Kohgi, M., Settai, R., & Onuki, Y. (2005). Electrical and magnetic properties of a single crystal UCu ₂Si₂. journal of the physical society of japan, 74(5), 1552-1556. https://doi.org/10.1143/JPSJ.74.1552

Electrical and magnetic properties of a single crystal UCu ₂Si₂. / Matsuda, Tatsuma D.; Haga, Yoshinori; Ikeda, Shugo; Galatanu, Andrei; Yamamoto, Etsuji; Shishido, Hiroaki; Yamada, Mineko; Yamaura, Jun Ichi; Hedo, Masato; Uwatoko, Yoshiya; Matsumoto, Takuya; Tada, Toshiya; Noguchi, Satoru; Sugimoto, Toyonari; Kuwahara, Keitaro; Iwasa, Kazuaki; Kohgi, Masahumi; Settai, Rikio; Onuki, Yoshichika.

In: journal of the physical society of japan, Vol. 74, No. 5, 01.05.2005, p. 1552-1556.

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

Matsuda, TD, Haga, Y, Ikeda, S, Galatanu, A, Yamamoto, E, Shishido, H, Yamada, M, Yamaura, JI, Hedo, M, Uwatoko, Y, Matsumoto, T, Tada, T, Noguchi, S, Sugimoto, T, Kuwahara, K, Iwasa, K, Kohgi, M, Settai, R & Onuki, Y 2005, 'Electrical and magnetic properties of a single crystal UCu ₂Si₂', journal of the physical society of japan, vol. 74, no. 5, pp. 1552-1556. https://doi.org/10.1143/JPSJ.74.1552

Matsuda, Tatsuma D. ; Haga, Yoshinori ; Ikeda, Shugo ; Galatanu, Andrei ; Yamamoto, Etsuji ; Shishido, Hiroaki ; Yamada, Mineko ; Yamaura, Jun Ichi ; Hedo, Masato ; Uwatoko, Yoshiya ; Matsumoto, Takuya ; Tada, Toshiya ; Noguchi, Satoru ; Sugimoto, Toyonari ; Kuwahara, Keitaro ; Iwasa, Kazuaki ; Kohgi, Masahumi ; Settai, Rikio ; Onuki, Yoshichika. / Electrical and magnetic properties of a single crystal UCu ₂Si₂. In: journal of the physical society of japan. 2005 ; Vol. 74, No. 5. pp. 1552-1556.

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abstract = "We have succeeded in growing a high-quality single crystal of UCu 2Si2 with the tetragonal structure by the Sn-flux method and measured the electrical resistivity, magnetic susceptibility, magnetization and specific heat. UCu2Si2 is found to order antiferromagnetically below TN = 106 K, and follows a successive ferromagnetic ordering at TC = 100 K. The magnetic properties are highly anisotropic, reflecting the crystal structure. An easy-axis of magnetization is found to be the [001] direction (c-axis) both in the antiferromagnetic and ferromagnetic phases, while the [100] direction (a-axis) corresponds to the hard-axis in magnetization. The magnetization curve in the antiferromagnetic phase indicates a clear metamagnetic transition at a low field of about 1 kOe and changes into a ferromagnetic magnetization curve below TC = 100 K. The saturation moment is determined as 1.75 μB/U at 2 K. The electronic specific heat coefficient is also determined as 20 mJ/(K2·mol).",

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AU - Matsuda, Tatsuma D.

AU - Haga, Yoshinori

AU - Ikeda, Shugo

AU - Galatanu, Andrei

AU - Yamamoto, Etsuji

AU - Shishido, Hiroaki

AU - Yamada, Mineko

AU - Yamaura, Jun Ichi

AU - Hedo, Masato

AU - Uwatoko, Yoshiya

AU - Matsumoto, Takuya

AU - Tada, Toshiya

AU - Noguchi, Satoru

AU - Sugimoto, Toyonari

AU - Kuwahara, Keitaro

AU - Iwasa, Kazuaki

AU - Kohgi, Masahumi

AU - Settai, Rikio

AU - Onuki, Yoshichika

PY - 2005/5/1

Y1 - 2005/5/1

N2 - We have succeeded in growing a high-quality single crystal of UCu 2Si2 with the tetragonal structure by the Sn-flux method and measured the electrical resistivity, magnetic susceptibility, magnetization and specific heat. UCu2Si2 is found to order antiferromagnetically below TN = 106 K, and follows a successive ferromagnetic ordering at TC = 100 K. The magnetic properties are highly anisotropic, reflecting the crystal structure. An easy-axis of magnetization is found to be the [001] direction (c-axis) both in the antiferromagnetic and ferromagnetic phases, while the [100] direction (a-axis) corresponds to the hard-axis in magnetization. The magnetization curve in the antiferromagnetic phase indicates a clear metamagnetic transition at a low field of about 1 kOe and changes into a ferromagnetic magnetization curve below TC = 100 K. The saturation moment is determined as 1.75 μB/U at 2 K. The electronic specific heat coefficient is also determined as 20 mJ/(K2·mol).

AB - We have succeeded in growing a high-quality single crystal of UCu 2Si2 with the tetragonal structure by the Sn-flux method and measured the electrical resistivity, magnetic susceptibility, magnetization and specific heat. UCu2Si2 is found to order antiferromagnetically below TN = 106 K, and follows a successive ferromagnetic ordering at TC = 100 K. The magnetic properties are highly anisotropic, reflecting the crystal structure. An easy-axis of magnetization is found to be the [001] direction (c-axis) both in the antiferromagnetic and ferromagnetic phases, while the [100] direction (a-axis) corresponds to the hard-axis in magnetization. The magnetization curve in the antiferromagnetic phase indicates a clear metamagnetic transition at a low field of about 1 kOe and changes into a ferromagnetic magnetization curve below TC = 100 K. The saturation moment is determined as 1.75 μB/U at 2 K. The electronic specific heat coefficient is also determined as 20 mJ/(K2·mol).

KW - Flux method

KW - Ising-type ferromagnetism

KW - Single crystal growth

KW - UCuSi

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