Low Temperature Thermal and Magnetic Properties of Haldane-Gap Antiferromagnet TMNIN.
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- Kobayashi Tatsuo
- Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
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- Kohda Akihiro
- Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
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- Amaya Kiichi
- Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560
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- Ito Masakazu
- Department of Applied Science, Faculty of Engineering, Kyushu University, Fukuoka 812
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- Deguchi Hiroyuki
- Department of Applied Science, Faculty of Engineering, Kyushu University, Fukuoka 812
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- Takeda Kazuyoshi
- Department of Applied Science, Faculty of Engineering, Kyushu University, Fukuoka 812
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- Asano Takayuki
- Department of Applied Physics, Faculty of Engineering, Fukui University, Bunkyo, Fukui 910
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- Ajiro Yoshitami
- Department of Applied Physics, Faculty of Engineering, Fukui University, Bunkyo, Fukui 910
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- Mekata Mamoru
- Department of Applied Physics, Faculty of Engineering, Fukui University, Bunkyo, Fukui 910
Bibliographic Information
- Other Title
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- Low Temperature Thermal and Magnetic Pr
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Abstract
Heat capacity and susceptibility measurements are performed down to 70, mK under magnetic fields in the Haldane-gap antiferromagnet (CH3)4NNi(NO2)3 (TMNIN). We have observed no magnetic long range order within our experimental range of the temperature down to 70, mK and the magnetic field up to 7, T. The heat capacity reflects the field dependence of the energy gap and show a broad anomaly above a critical field HC, which has been also observed in NENP. In the adiabatic magnetization measurement, the spin temperature shows a minimum around HC. These results are interpreted as increasing of the energy gap above HC which may suppress the expected long-range-ordering.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 63 (5), 1961-1966, 1994
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204181856384
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- NII Article ID
- 110001977499
- 210000098036
- 130004535018
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- NII Book ID
- AA00704814
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- BIBCODE
- 1994JPSJ...63.1961K
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 3875216
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed