Ultrasonic investigation of the magnetic ordering in Er.sub.3./sub.Ru.sub.4./sub.Al.sub.12./sub. with a distorted Kagome lattice

0572285 - FZÚ 2024 RIV JP eng C - Konferenční příspěvek (zahraniční konf.)
Ishii, I. - Kurata, Y. - Muneshige, H. - Andreev, Alexander V. - Gorbunov, D.I. - Nohara, M. - Suzuki, T.
Ultrasonic investigation of the magnetic ordering in Er₃Ru₄Al₁₂ with a distorted Kagome lattice.
JPS Conference Proceedings. Vol. 38. Tokyo: Physical Society of Japan, 2023 - (Nohara, M.; Kawaguchi, Y.; Ogata, M.), č. článku 011106. ISBN 978-4-89027-151-1. ISSN 2435-3892.
[International Conference on Low Temperature Physics (LT29) /29./. Sapporo (JP), 18.08.2022-24.08.2022]
Grant CEP: GA ČR(CZ) GA21-09766S; GA MŠMT(CZ) LM2018096
Institucionální podpora: RVO:68378271
Klíčová slova: rare-earth intermetallic compounds * magnetic properties * acoustic properties
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
https://journals.jps.jp/doi/10.7566/JPSCP.38.011106

To investigate a phase transition around 2 K in Er3Ru4Al12 with a distorted kagome lattice, we conducted the specific heat, magnetic susceptibility, and ultrasonic measurements. At zero field a sharp peak of the specific heat is observed at TN = 2.2 K, implying a phase transition. The magnetic susceptibility in a field applied along [100], which is a magnetically easy direction, remains almost the same value below TN. In the magnetic field dependence of C11 at 0.5 K, we discovered two abrupt softenings at 0.25 T and around 0.47 T, proposing that the antiferromagnetic phase boundary closes around 0.47 T in the field applied along [100]. Other phase boundary exists around 0.25 T in the ordered state.
Trvalý link: https://hdl.handle.net/11104/0343032