2009年10月
Multipole effects in non-Kramers doublet system PrMg3
PHYSICA B-CONDENSED MATTER
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- 巻
- 404
- 号
- 19
- 開始ページ
- 3187
- 終了ページ
- 3190
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.physb.2009.07.051
- 出版者・発行元
- ELSEVIER SCIENCE BV
We performed ultrasonic measurements on a single crystal of PrMg3. The characteristic Curie-type softening was observed in temperature dependence of transverse mode (C-11 - C-12)/2 below 8 K down to 0.8 K. This softening in PrMg3 is caused by a non-Kramers Gamma(3) doublet ground state having electric quadrupoles O-u and O-v and magnetic octupole T-xyz. The elastic constant (C-11 - C-12)/2 shows a minimum at 25 K, which cannot be explained by the quadrupole susceptibility based on the crystal electric field (CEF) levels. However, considering higher order (l = 4) multipole, namely electric hexadecapole, the minimum around 25 K was well reproduced. At lower temperatures, a shoulder anomaly in elastic constant being deviated from the Curie-type softening was observed around 100-800 mK in (C-11 - C-12)/2. This anomaly is unaffected by magnetic fields up to 14T. (C) 2009 Elsevier B.V. All rights reserved.
- リンク情報
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- DOI
- https://doi.org/10.1016/j.physb.2009.07.051
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000271357300080&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70349102875&origin=inward
- ID情報
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- DOI : 10.1016/j.physb.2009.07.051
- ISSN : 0921-4526
- SCOPUS ID : 70349102875
- Web of Science ID : WOS:000271357300080