Magnetocaloric effect in the layered organic–inorganic hybrid (CH3NH3)2CuCl4<xref rid="cpb_27_2_027501fn1" ref-type="fn">*</xref><fn id="cpb_27_2_027501fn1"><label>*</label>Project supported by the National Natural Science Foundation of China (Grant Nos. 51371193 and 11534015), the Youth Innovation Promotion of the Chinese Academy of Sciences (Grant No. 2013004), and the Science Fund from the Chinese Academy of Sciences (Grant Nos. XDB07030200 and KJZD-EW-M05).</fn>

Magnetocaloric effect in the layered organic–inorganic hybrid (CH₃NH₃)₂CuCl₄**

Project supported by the National Natural Science Foundation of China (Grant Nos. 51371193 and 11534015), the Youth Innovation Promotion of the Chinese Academy of Sciences (Grant No. 2013004), and the Science Fund from the Chinese Academy of Sciences (Grant Nos. XDB07030200 and KJZD-EW-M05).

Ma Yinina^{1, 2}, Zhai Kun¹, Yan Liqin^{1, †}, Chai Yisheng¹, Shang Dashan¹, Sun Young^{1, 2, ‡}

(color online) (a) Heat capacity of MA₂CuCl₄ measured under the fields of B = 0, 2, and 5 T. (b) Heat capacity in zero field and its fitting line (orange color) by the power formula (7) in a range of 2 K–12 K and the extrapolation (blue color) below T_c. The inset shows the temperature dependence of C_p/T³, the magenta dashed line is the T_c where a kink can be observed.