High Magnetic Field Study of Elastic Constants of the Cage-structure Compound SmBe13
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Contributors
Abstract
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.
Details
Original language | English |
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Article number | 012032 |
Journal | Journal of Physics: Conference Series |
Volume | 683 |
Issue number | 1 |
Publication status | Published - 5 Feb 2016 |
Peer-reviewed | Yes |
Conference
Title | TMU International Symposium on New Quantum Phases Emerging from Novel Crystal Structure |
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Duration | 24 - 25 September 2015 |
City | Tokyo |
Country | Japan |