Magnetocaloric effect and critical properties in La0.85Li0.15MnO3

  • Li-an Han
  • Shao-fang Pang
  • Hua-ze Zhu
  • Peng-li Zhang
  • Jing Yang
  • Tao Zhang


The manganite La0.85Li0.15MnO3 (LLMO) was synthesized by standard ceramic preparation routes, its magnetocaloric effect and critical phenomenon have been studied by measurements of dc-magnetization. The sample is of single phase with a rhombohedral structure confirmed by the X-ray diffraction refinement. M–T data reveal that the LLMO shows a second-order magnetic transition with a TC of 235 K. Maximum values of magnetic entropy change (− ∆SMmax= 5.32 J K−1 Kg−1) and relative cooling power (RCP = 320.3 J kg−1) have been observed when the magnetic field change is up to 5 T. The LLMO compound with excellent magnetocaloric effect is expected to have effective applications in sub-room temperature range. In addition, the critical behavior around its TC is thoroughly analyzed using the field dependence of the magnetic entropy change. The determined values of critical exponents (β = 0.507, γ = 1.045, and δ = 2.982) are fairly close to the theoretical values of the mean field model (β = 0.5, γ = 1.0, and δ = 3.0), indicating the presence of long-range ferromagnetic ordering in this system. The validity of the obtained exponents is confirmed by the scaling theory.



This work was supported by the National Natural Science Foundation of China under grant No. 61201088 and 11605133, the Scientific Research Program Funded by ShaanXi Provincial Education Commission (Program no. 2010JK674), and Foundation Industrial Public Relation Project of Shaanxi Technology Committee (2016GY-041).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Li-an Han
    • 1
  • Shao-fang Pang
    • 1
  • Hua-ze Zhu
    • 1
  • Peng-li Zhang
    • 1
  • Jing Yang
    • 1
  • Tao Zhang
    • 1
  1. 1.Department of Applied PhysicsXi’an University of Science and TechnologyXi’anPeople’s Republic of China

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