Demagnetizing Effects on Antiferromagnetic Resonance in CsNiF3
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- Yamazaki Hitoshi
- Department of Physics, Faculty of Science, Okayama University Department of Physics, University of California
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- Soares Edmundo
- Department of Physics, University of California
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- Panepucci Horácio
- Department of Physics, University of California
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- Morishige Yukio
- Department of Physics, Faculty of Science, Okayama University
書誌事項
- タイトル別名
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- Demagnetizing Effects on Antiferromagnetic Resonance in CsNiF<SUB>3</SUB>
- Demagnetizing Effects on Antiferromagne
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抄録
Antiferromagnetic resonance in CsNiF3 has been investigated at 35, 24 and 9 GHz bands between T=1.3 K and the Néel temperature (TN=2.61 K). The resonance frequencies are seriously dependent on sample shape. The results can be understood by a molecular field theory including both the surface demagnetization and the Lorentz fields. The critical field of the phase transition from the spin-flop to the paramagnetic phase has been obtained. The data at T=1.4 K allow a determination of the parameters: antiferromagnetic interchain exchange field HE=990±50 Oe, in-plane anisotropy field HA1=210±20 Oe and sublattice magnetization M=96±5 emu/cm3. The in-plane anisotropy due to the dipolar interaction is estimated to be 245 Oe in reasonable agreement with the observation. From the zero-field gap frequency a large negative anisotropy along the c-axis is dtermined to be HA2=60±3 kOe or D⁄k=9.2±0.5 K.
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 47 (5), 1464-1470, 1979
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679159486336
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- NII論文ID
- 110001964484
- 130003896161
- 210000088130
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1979JPSJ...47.1464Y
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- COI
- 1:CAS:528:DyaL3cXjtlSmsQ%3D%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 2067869
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可