Antiferromagnetic Resonance in Sodium Clusters in Sodalite
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- Nakano Takehito
- Department of Physics, Graduate School of Science, Osaka University
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- Kashiwagi Takanari
- KYOKUGEN (Center for Quantum Science and Technology under Extreme Conditions), Osaka University
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- Hanazawa Atsufumi
- Department of Physics, Graduate School of Science, Osaka University
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- Watanabe Kunihiro
- Department of Physics, Graduate School of Science, Osaka University
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- Hagiwara Masayuki
- KYOKUGEN (Center for Quantum Science and Technology under Extreme Conditions), Osaka University
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- Nozue Yasuo
- Department of Physics, Graduate School of Science, Osaka University
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Abstract
Sodium clusters arrayed in aluminosilicate sodalite are known to show antiferromagnetism below the Néel temperature TN of 48 K. We have performed electron spin resonance (ESR) measurements on a powder specimen of this material at an X-band microwave frequency (9.7 GHz) with temperature varying between 4 and 300 K. The ESR spectra show asymmetric broadening below TN, which can be regarded as a powder pattern of the antiferromagnetic resonance (AFMR) signal. From the analysis of the AFMR fields at low temperatures using the exchange-coupling constants evaluated from the magnetic susceptibility, the anisotropy field is estimated to be significantly small at about 1–2 Oe. These results indicate that this material is an ideal Heisenberg antiferromagnet resulting from the character of s-electrons in zeolite cages with a cubic arrangement.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 78 (8), 084723-084723, 2009
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679173876608
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- NII Article ID
- 130005437779
- 40016692874
- 210000107950
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- NII Book ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 10317550
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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