2018年5月1日
Magnetodielectric properties of the square cupola antiferromagnet Ba(TiO)Cu4(PO4)4
Physica B: Condensed Matter
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- 巻
- 536
- 号
- 開始ページ
- 93
- 終了ページ
- 95
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physb.2017.10.101
- 出版者・発行元
- Elsevier B.V.
Magnetodielectric properties of the tetragonal magnetic insulator Ba(TiO)Cu4(PO4)4 consisting of asymmetric Cu4O12 square cupolas have been investigated in a magnetic field along the [001] axis (B[001]), where a metamagnetic transition occurs at Bc||[001] ~ 12 T and 1.4 K. Clear anomalies associated with the transition to the high-field phase are observed in dielectric constants both along the [100] (ε[100]) and [001] (ε[001]) axes. It is found that the B dependence of ε[001] and ε[100] across Bc||[001] is anisotropic: ε[001] decreases while ε[100] increases. The origin of this anisotropic magnetodielectric response is discussed.
- リンク情報
- ID情報
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- DOI : 10.1016/j.physb.2017.10.101
- ISSN : 0921-4526
- SCOPUS ID : 85032836270