The magnetic phase transitions and magnetocaloric effect in MnNi1-xCoxGe alloys

被引：10
|
作者：
Zhang, C. L. [1 ]
Chen, J. [1 ]
Wang, T. Z. [1 ]
Xie, G. X. [1 ]
Zhu, C. [1 ]
Wang, D. H. [2 ,3 ]
机构：
[1] Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China
[2] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
来源：
SOLID STATE COMMUNICATIONS | 2011年 / 151卷 / 19期
基金：
中国国家自然科学基金;
关键词：
Metamagnetic transitions; Magnetocaloric effect; ENTROPY CHANGE; CRYSTAL;
D O I：
10.1016/j.ssc.2011.06.017
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The magnetic phase transitions and the magnetocaloric effects in MnNi1-xCoxGe (x = 0.38 and 0.40) alloys were investigated. The substitution of Co for Ni in the MnNiGe antiferromagnet results in the metamagnetic transitions from antiferromagnetic to ferromagnetic state, which associates with very small thermal and magnetic hystereses. Positive and negative values of magnetic entropy changes are exhibited around the metamagnetic transition temperature and Curie temperature, respectively. The relatively large refrigerant capacity in low magnetic field along with the good reversibility suggest that MnNi1-xCoxGe (x = 0.38 and 0.40) alloys are potential candidates for magnetic refrigeration. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1359 / 1362
页数：4
相关论文
共 50 条
  • [1] Magnetic phase transitions and magnetocaloric effect in the Fe-doped MnNiGe alloys
    Zhang Cheng-Liang
    Wang Dun-Hui
    Chen Jian
    Wang Ting-Zhi
    Xie Guang-Xi
    Zhu Chun
    CHINESE PHYSICS B, 2011, 20 (09)
  • [2] Magnetic phase transitions and magnetocaloric effect in the Fe-doped MnNiGe alloys
    张成亮
    王敦辉
    陈健
    王廷志
    谢广喜
    朱纯
    Chinese Physics B, 2011, (09) : 12 - 15
  • [3] THE MAGNETOCALORIC EFFECT OF TERBIUM DYSPROSIUM ALLOYS IN THE REGION OF MAGNETIC PHASE-TRANSITIONS
    NIKITIN, SA
    TISHIN, AM
    LEONTIEV, PI
    VESTNIK MOSKOVSKOGO UNIVERSITETA SERIYA 3 FIZIKA ASTRONOMIYA, 1990, 31 (01): : 66 - 69
  • [4] Magnetic phase transitions and magnetocaloric effect of MnCoGe1-xSix
    Lai, J. W.
    Zheng, Z. G.
    Montemayor, R.
    Zhong, X. C.
    Liu, Z. W.
    Zeng, D. C.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 372 : 86 - 90
  • [5] Magnetic phase transition and magnetocaloric effect in Mn1-xZnxCoGe alloys
    沈程娟
    刘强
    龚元元
    王敦辉
    都有为
    Chinese Physics B, 2014, (09) : 432 - 435
  • [6] Magnetic phase transition and magnetocaloric effect in Mn1-xZnxCoGe alloys
    Shen Cheng-Juan
    Liu Qiang
    Gong Yuan-Yuan
    Wang Dun-Hui
    Du You-Wei
    CHINESE PHYSICS B, 2014, 23 (09)
  • [7] Magnetocaloric effect at the first-order magnetic phase transitions
    Spichkin, YI
    Tishin, AM
    JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 403 (1-2) : 38 - 44
  • [8] Isostructural magnetic phase transitions and the magnetocaloric effect in Ising ferromagnets
    Lavanov, G. Yu.
    Kalita, V. M.
    Loktev, V. M.
    LOW TEMPERATURE PHYSICS, 2014, 40 (09) : 823 - 829
  • [9] Successive magnetic phase transitions and magnetocaloric effect in the MnNiFeGe alloy
    Wang, Chuancong
    Hu, Yong
    Hu, Qiubo
    Chen, Fenghua
    Zhang, Mingang
    He, Xijia
    Li, Zhe
    Wang, Dunhui
    Cao, Qingqi
    Du, Youwei
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017, 439 : 13 - 16
  • [10] Relationship between the magnetocaloric effect and sequential magnetic phase transitions in Ni-Mn-Ga alloys
    Zhou, Xuezhi
    Li, Wei
    Kunkel, H.P.
    Williams, Gwyn
    Zhang, Shuihe
    Journal of Applied Physics, 2005, 97 (10):
12345