ACu2(PO4)2[A=Ba, Sr]の強磁場ESR

Material type: 文書・図像類

Author: 秦, 雅行ほか

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Publication date: 2002-03

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Note (General)：: High magnetic field ESR measurements of BaCu(PO4)2 have been performed using a Gunn oscillator (120 GHz) at temperatures from 4.2 K to 140 K. Three r...

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Material Type: 文書・図像類
Title: ACu2(PO4)2[A=Ba, Sr]の強磁場ESR
Author/Editor: 秦, 雅行
光藤, 誠太郎
出原, 敏孝
目片, 守
Author Heading: 秦, 雅行
光藤, 誠太郎
出原, 敏孝
目片, 守
Publication Date: 2002-03
Publication Date (W3CDTF): 2002-03
Alternative Title: High magnetic field ESR measurements of ACu2(PO4)2[A=Ba, Sr]
Periodical title: 遠赤外領域開発研究
No. or year of volume/issue: 3
Volume: 3
Pages: 145-154
Text Language Code: jpn
Target Audience: 一般
Note (General): High magnetic field ESR measurements of BaCu(PO4)2 have been performed using a Gunn oscillator (120 GHz) at temperatures from 4.2 K to 140 K. Three resonance lines have been observed below 20 K, while only one resonance has been observed above 20 K. Above 20 K, ESR integrated intensity was in a good agreement with cluster chain model. The best fit of ESR integrated intensity data was obtained with J1/kB=22 K, J2/kB=53 K and J3/kB=12 K. High magnetic field ESR measurements of SrCu2(PO4)2 have been performed using in good agreement with cluster chain model. The best fit of ESR intensity data was obtained with J1/kB=22 K, J2/kB=33 K and J3/kB=6 K. Integrated of ESR absorption for both Ba a d Sr compounds shows a good agreement with cluster chain model. It is consistent with crystallographic symmetry. However, the values of exchange interaction constants J1, J2, J3 obtained from the cluster chain model are different. Sr compound has smaller alternating exchange interaction than Ba compound one. In order to clarify the reason for experimentally observed differences between Ba and Sr compounds, it is necessary to further investigate the crystal structure of the Sr compound.
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ