High Magnetic Field Study of Elastic Constants of the Cage-structure Compound SmBe13
High Magnetic Field Study of Elastic Constants of the Cage-structure Compound SmBe13
Mombetsu, S.; Murazumi, T.; Hiura, K.; Yamazaki, S.; Shimizu, Y.; Hidaka, H.; Yanagisawa, T.; Amitsuka, H.; Yasin, S.; Zherlitsyn, S.; Wosnitza, J.
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 ‖, which is smaller than the estimated value from mean-field approximation assuming the Г8 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 lowtemperature state is not a simple antiferromagnetically ordered state. In addition, no elastic anomaly due to rattling modes was found in the present measurements.
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Journal of Physics: Conference Series 683(2016), 012032
DOI: 10.1088/1742-6596/683/1/012032
Cited 4 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-23383
Publ.-Id: 23383