TY - JOUR
T1 - High Magnetic Field Study of Elastic Constants of the Cage-structure Compound SmBe13
AU - Mombetsu, S.
AU - Murazumi, T.
AU - Hiura, K.
AU - Yamazaki, S.
AU - Shimizu, Y.
AU - Hidaka, H.
AU - Yanagisawa, T.
AU - Amitsuka, H.
AU - Yasin, S.
AU - Zherlitsyn, S.
AU - Wosnitza, J.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2016/2/5
Y1 - 2016/2/5
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/683/1/012032
DO - 10.1088/1742-6596/683/1/012032
M3 - Conference article
AN - SCOPUS:84962915375
SN - 1742-6588
VL - 683
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012032
T2 - TMU International Symposium on New Quantum Phases Emerging from Novel Crystal Structure
Y2 - 24 September 2015 through 25 September 2015
ER -