中国物理B ›› 2016, Vol. 25 ›› Issue (4): 47601-047601.doi: 10.1088/1674-1056/25/4/047601

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Magnetic transition behavior of perovskite manganites Nd0.5Sr0.3Ca0.2MnO3 polycrystalline

Ru Xing(邢茹), Su-Lei Wan(万素磊), Wen-Qing Wang(王文清), Lin Zheng(郑琳), Xiang Jin(金香), Min Zhou(周敏), Yi Lu(鲁毅), Jian-Jun Zhao(赵建军)   

  1. 1 Department of Physics, Baotou Normal University, Baotou 014030, China;
    2 Inner Mongolia Key Laboratory of Magnetism and Magnetic Materials, Baotou 014030, China
  • 收稿日期:2015-09-17 修回日期:2015-12-16 出版日期:2016-04-05 发布日期:2016-04-05
  • 通讯作者: Jian-Jun Zhao E-mail:nmzhaojianjun@126.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11164019, 51562032，and 61565013), the Inner Mongolia Natural Science Foundation, China (Grant Nos. 2015MS0109, NJZZ11166, and NJZY12202), and the Science and Technology in Baotou Production-Study-Research Cooperation Projects, China (Grant No. 2014X1014-01).

Magnetic transition behavior of perovskite manganites Nd0.5Sr0.3Ca0.2MnO3 polycrystalline

Ru Xing(邢茹)1,2, Su-Lei Wan(万素磊)1, Wen-Qing Wang(王文清)1, Lin Zheng(郑琳)1, Xiang Jin(金香)1, Min Zhou(周敏)2, Yi Lu(鲁毅)1,2, Jian-Jun Zhao(赵建军)1,2   

  1. 1 Department of Physics, Baotou Normal University, Baotou 014030, China;
    2 Inner Mongolia Key Laboratory of Magnetism and Magnetic Materials, Baotou 014030, China
  • Received:2015-09-17 Revised:2015-12-16 Online:2016-04-05 Published:2016-04-05
  • Contact: Jian-Jun Zhao E-mail:nmzhaojianjun@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11164019, 51562032，and 61565013), the Inner Mongolia Natural Science Foundation, China (Grant Nos. 2015MS0109, NJZZ11166, and NJZY12202), and the Science and Technology in Baotou Production-Study-Research Cooperation Projects, China (Grant No. 2014X1014-01).

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摘要： A polycrystalline sample Nd0.5Sr0.3Ca0.2MnO3 is prepared by the conventional solid state reaction method. The structure and magnetic properties are investigated with x-ray diffraction (XRD) patterns, a superconducting quantum interference device (SQUID), and electron spin resonance (ESR). The sample is in single phase with the space group Pbnm symmetry. With the decrease of temperature, Nd0.5Sr0.3Ca0.2MnO3 undergoes three magnetic transitions: ferromagnetic transition at TC ≈ 210 K, charge-ordering at TCO ≈ 175 K, and antiferromagnetic transition at TN=155 K. In addition, the activation energy Ea ≈ 52.78 meV can be extracted by curve fitting.

关键词: magnetic transition, electron spin resonance, activation energy

Abstract: A polycrystalline sample Nd0.5Sr0.3Ca0.2MnO3 is prepared by the conventional solid state reaction method. The structure and magnetic properties are investigated with x-ray diffraction (XRD) patterns, a superconducting quantum interference device (SQUID), and electron spin resonance (ESR). The sample is in single phase with the space group Pbnm symmetry. With the decrease of temperature, Nd0.5Sr0.3Ca0.2MnO3 undergoes three magnetic transitions: ferromagnetic transition at TC ≈ 210 K, charge-ordering at TCO ≈ 175 K, and antiferromagnetic transition at TN=155 K. In addition, the activation energy Ea ≈ 52.78 meV can be extracted by curve fitting.

Key words: magnetic transition, electron spin resonance, activation energy

中图分类号:  (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)

  • 76.50.+g
75.47.Lx (Magnetic oxides) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)