TY - JOUR
T1 - High-pressure structural and transport studies of orthorhombic Sm2Ru3Ge5 compound
AU - Sokkalingam, Rajkumar
AU - Lingannan, Govindaraj
AU - Sundaramoorthy, Muthukumaran
AU - Kuo, Chia-Nung
AU - Lue, C. S.
AU - Sonachalam, Arumugam
AU - Joseph, Boby
N1 - Publisher Copyright:
© 2024 Acta Materialia Inc.
PY - 2024/4/15
Y1 - 2024/4/15
N2 - We report the results from high-pressure (HP) studies on orthorhombic U2Co3Si5-structure type Sm2Ru3Ge5 compound. HP synchrotron X-ray powder diffraction revealed a smooth reduction in the unit-cell volume up to ∼ 9 GPa which can be well described by a second-order Birch-Murnaghan equation providing the bulk modulus of the system to be ∼ 147 GPa. This system is found to have several Raman modes below 360 cm−1 all of which show a hardening with pressure up to ∼ 9 GPa. Thus, there is no symmetry changing structural phase transitions in this system up to ∼ 9 GPa. The electrical resistivity under HP up to 3 GPa revealed that with increasing pressure, the anomaly related to the charge density wave transition shifted continuously to lower temperatures. In contrast, with increasing pressure, the anomaly associated with the antiferromagnetic transition at ∼ 7 K shows no detectable change.
AB - We report the results from high-pressure (HP) studies on orthorhombic U2Co3Si5-structure type Sm2Ru3Ge5 compound. HP synchrotron X-ray powder diffraction revealed a smooth reduction in the unit-cell volume up to ∼ 9 GPa which can be well described by a second-order Birch-Murnaghan equation providing the bulk modulus of the system to be ∼ 147 GPa. This system is found to have several Raman modes below 360 cm−1 all of which show a hardening with pressure up to ∼ 9 GPa. Thus, there is no symmetry changing structural phase transitions in this system up to ∼ 9 GPa. The electrical resistivity under HP up to 3 GPa revealed that with increasing pressure, the anomaly related to the charge density wave transition shifted continuously to lower temperatures. In contrast, with increasing pressure, the anomaly associated with the antiferromagnetic transition at ∼ 7 K shows no detectable change.
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U2 - 10.1016/j.scriptamat.2024.115999
DO - 10.1016/j.scriptamat.2024.115999
M3 - Article
AN - SCOPUS:85183971590
SN - 1359-6462
VL - 244
JO - Scripta Materialia
JF - Scripta Materialia
M1 - 115999
ER -