2021年4月12日
Electric Quadrupolar Contributions in the Magnetic Phases of UNi4B
Physical Review Letters
- 巻
- 126
- 号
- 15
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/physrevlett.126.157201
- 出版者・発行元
- American Physical Society (APS)
We present acoustic signatures of the electric quadrupolar degrees of freedom in the honeycomb-layer compound UNi4B. The transverse ultrasonic mode C66 shows softening below 30 K both in the paramagnetic phase and antiferromagnetic phases down to ∼0.33 K. Furthermore, we traced magnetic field-temperature phase diagrams up to 30 T and observed a highly anisotropic elastic response within the honeycomb layer. These observations strongly suggest that Γ6(E2g) electric quadrupolar degrees of freedom in localized 5f2 (J=4) states are playing an important role in the magnetic toroidal dipole order and magnetic-field-induced phases of UNi4B, and evidence some of the U ions remain in the paramagnetic state even if the system undergoes magnetic toroidal ordering.
- リンク情報
-
- DOI
- https://doi.org/10.1103/physrevlett.126.157201
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/33929262
- 共同研究・競争的資金等の研究課題
- 電流と格子回転・歪みによる複合共役場を用いた拡張多極子検出の試み
- URL
- https://link.aps.org/article/10.1103/PhysRevLett.126.157201 本文へのリンクあり
- URL
- http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.126.157201/fulltext
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85104889111&origin=inward 本文へのリンクあり
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85104889111&origin=inward
- ID情報
-
- DOI : 10.1103/physrevlett.126.157201
- ISSN : 0031-9007
- eISSN : 1079-7114
- PubMed ID : 33929262
- SCOPUS ID : 85104889111