High Magnetic Field Study of Elastic Constants of the Cage-structure Compound SmBe13

S. Mombetsu, T. Murazumi, K. Hiura, S. Yamazaki, Y. Shimizu, H. Hidaka, T. Yanagisawa, H. Amitsuka, S. Yasin, S. Zherlitsyn, J. Wosnitza

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4 Citations (Scopus)


Ultrasonic measurements were performed on the cage-structure compound SmBe13. We have investigated the magnetic field-temperature phase diagram of this material by using pulsed magnetic fields. We found that the low-temperature magnetic order is suppressed by a magnetic field of 43 T for H ∥ [001], which is smaller than the estimated value from mean-field approximation assuming the Γ8 quartet crystal-electric-field ground state and simple antiferromagnetic order. We found that the elastic constant C44 shows softening below the ordering temperature and has a local minimum below 7 T. These facts suggest that the low- temperature state is not a simple antiferromagnetically ordered state. In addition, no elastic anomaly due to rattling modes was found in the present measurements.

Original languageEnglish
Article number012032
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2016 Feb 5
EventTMU International Symposium on New Quantum Phases Emerging from Novel Crystal Structure - Tokyo, Japan
Duration: 2015 Sept 242015 Sept 25


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