Large low field magnetocaloric effect in first-order phase transition compound TlFe3Te3with low-level hysteresis.
Magnetic refrigeration based on the magnetocaloric effect (MCE) is an environment-friendly, high-efficiency technology. It has been believed that a large MCE can be realized in the materials with a first-order magnetic transition (FOMT). Here, we found that TlFe3Te3is a ferromagnetic metal with a first-order magnetic transition occurring at Curie temperature TC= 220 K. The maximum values of magnetic entropy change (Δ) along the crystallographic c-axis, estimated from the magnetization data, reach to 5.9 J kg-1K-1and 7.0 J kg-1K-1for the magnetic field changes, ΔH = 0-1 T and 0-2 T, respectively, which is significantly larger than that of MCE materials with a second-order magnetic transition (SOMT). Besides the large ΔSM, the low-level both thermal and field hysteresis make TlFe3Te3compound an attractive candidate for magnetic refrigeration. Our findings should inspire the exploration of high performance new MCE materials.
Department of Physics, Zhejiang University, Hangzhou 310027, China.
Qianhui
Q
Mao
Department of Physics, Hangzhou Normal University, Hangzhou 310036, China.
Jinhu
J
Yang
Department of Physics, Zhejiang University, Hangzhou 310027, China.|Department of Physics, Hangzhou Normal University, Hangzhou 310036, China.
Hangdong
H
Wang
Department of Physics, Zhejiang University, Hangzhou 310027, China.
Rajwali
R
Khan
Department of Physics, Zhejiang University, Hangzhou 310027, China.
Jianhua
J
Du
Department of Physics, Zhejiang University, Hangzhou 310027, China.
Yuxing
Y
Zhou
Department of Physics, Zhejiang University, Hangzhou 310027, China.
Binjie
B
Xu
Department of Physics, Zhejiang University, Hangzhou 310027, China.
Qin
Q
Chen
Department of Physics, Zhejiang University, Hangzhou 310027, China.|Collaborative Innovation Center of Advanced Microstructures, Nanjing 210093, China.
Minghu
M
Fang
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