TY - JOUR
T1 - Charge ordering in Sm4Bi3 under pressure
AU - Kobayashi, H.
AU - Yamaoka, S.
AU - Ikeda, S.
AU - Hirao, N.
AU - Ohishi, Y.
AU - Yoda, Y.
AU - Ochiai, A.
N1 - Funding Information:
The experiments using synchrotron radiation were performed at SPring-8 with approval of Japan Synchrotron Radiation Research Institute (JASRI) (Proposal Nos. 2004A0154, 2004B0726, 2008B1398, 2010B1517). H.K. acknowledges the partial support of the Japanese Ministry of Education, Culture, Sports, Science and Technology, and Grants-in-Aid for Scientific Research (B) 17340098.
Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/11/7
Y1 - 2017/11/7
N2 - We have investigated the charge ordering in Sm4Bi3 under pressure by magnetic susceptibility and x-ray diffraction measurements. We observed discontinuous anomalies in the temperature dependences of magnetic susceptibility and volume at the charge ordering transition owing to the first-order transition and then the estimated charge ordering transition temperature decreases linearly with increasing pressure. The volume ratio between the SmBi6 octahedra at two nonequivalent Sm sites indicates the partial charge ordering of Sm ions in the charge ordered phase. The evidence of the partial charge ordering in Sm4Bi3 is consistent with the smaller electronic component in the entropy change at the charge ordering transition.
AB - We have investigated the charge ordering in Sm4Bi3 under pressure by magnetic susceptibility and x-ray diffraction measurements. We observed discontinuous anomalies in the temperature dependences of magnetic susceptibility and volume at the charge ordering transition owing to the first-order transition and then the estimated charge ordering transition temperature decreases linearly with increasing pressure. The volume ratio between the SmBi6 octahedra at two nonequivalent Sm sites indicates the partial charge ordering of Sm ions in the charge ordered phase. The evidence of the partial charge ordering in Sm4Bi3 is consistent with the smaller electronic component in the entropy change at the charge ordering transition.
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U2 - 10.1088/1742-6596/950/4/042035
DO - 10.1088/1742-6596/950/4/042035
M3 - Conference article
AN - SCOPUS:85038579647
VL - 950
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 4
M1 - 042035
T2 - Joint AIRAPT-25th and EHPRG-53rd International Conference on High Pressure Science and Technology
Y2 - 30 August 2015 through 4 September 2015
ER -