Magnetic Properties of Filled Skutterudite EuFe4As12 under Pressure

International Conference on Strongly Correlated Electron Systems 2014

Kawamura, Yukihiro^1 ; Chen, Yu Qi^1 ; Nakayama, Tomoki^1 ; Shirakawa, Ryouhei^1 ; Hayashi, Junichi^1 ; Takeda, Keiki^1 ; Sekine, Chihiro^1

Muroran Institute of Technology, Mizumoto Muroran, Hokkaido

050-8585, Japan^1

关键词: Ambient pressures;    Applying pressure;    Effect of pressure;    Filled-skutterudite;    Maximum pressure;    Ordering phase;    Ordering temperature;    Pressure cell;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/592/1/012033/pdf
DOI  :  10.1088/1742-6596/592/1/012033

来源: IOP

【 摘 要 】

We have investigated the effect of pressure on magnetic ordering of EuFe4As12by measuring magnetization. The magnetization under pressure is measured by incorporating ceramic opposed anvil pressure cell into MPMS. The ferromagnetic-like ordering temperature TC, which is 152 K at ambient pressure, increases by applying pressure. The increase rate of TCagainst pressure (dTC/dP) is almost the same value at each field i.e., 5.5 K/GPa for H =0.1 T and 5.2 K/GPa for H =1T. The dTC/dP is almost constant up to 4 GPa, the maximum pressure of this study. On the other hand, the value of magnetization at ordering phase monotonically decreases with increasing pressure.