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ID 51054
本文ファイル
著者
Ishii, Isao 大学院先進理工系科学研究科 広大研究者総覧
Mizuno, Takuyou
Kumano, Soichiro
Umeno, Tomohiro
Suzuki, Daichi
Kurata, Yuki
Suzuki, Takashi 大学院先進理工系科学研究科 広大研究者総覧
Gorbunov, Denis I.
Henriques, Margarida S.
Andreev, Alexander V.
抄録(英)
The distorted kagome lattice antiferromagnet Tb3Ru4Al12 with a hexagonal structure has the Néel temperature TN = 22 K. To clarify the 4 f -electronic state and an influence of electric quadrupoles in Tb3Ru4Al12, ultrasonic measurements on a single-crystalline sample at zero magnetic field and under fields were carried. A characteristic elastic softening of the transverse modulus C66 originating from a quadrupole interaction was found. The crystal electric field parameters were determined to reproduce C66, magnetic susceptibilities, and magnetization curves. The obtained level scheme is that the ground and first excited states are singlets, despite the existence of both the magnetic transition and the quadrupole interaction, indicating that Tb3Ru4Al12 is a curious compound. The positive sign of the quadrupole-quadrupole coupling constant for C66 indicates a ferroquadrupolar-type interaction of the electric quadrupole Oxy or O2 2. The anisotropic magnetic field dependencies of TN in the field along [100] and [001] were also clarified.
内容記述
This work was supported by JSPS KAKENHI Grants No.17H06136, No. 18KK0078, and No. 19K03719. This work was also supported by CResCent (Chirality Research Center) in Hiroshima University (the MEXT program for promoting the enhancement of research universities, Japan) and by JSPS Core-to-Core Program, A. Advanced Research Networks. The work was supported by Projects No. 19-00925S and No. 19-07931Y of the Czech Science Foundation and by MGML within the Program of Czech Research Infrastructures (Project No. LM2018096).
掲載誌名
Physical Review B
101巻
16号
開始ページ
165116-1
終了ページ
165116-7
出版年月日
2020-04-15
出版者
American Physical Society
ISSN
2469-9950
2469-9969
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
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publisher
権利情報
© 2020 American Physical Society
関連情報URL
部局名
先進理工系科学研究科