Phase transition-induced magnetocaloric effects in R2Mo2O7 (R = Er, Dy, Gd and Y) molybdates
Phase transition-induced magnetocaloric effects in R2Mo2O7 (R = Er, Dy, Gd and Y) molybdates
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R2Mo2O7(R = Er、Dy、Gd 和 Y)钼酸盐中相变诱导的磁热效应
DOI:
10.1016/j.matlet.2017.04.007
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发表时间:
2017-07
影响因子:
3
通讯作者:
Cheng Zhao-Hua
中科院分区:
文献类型:
--
作者:
Wu Yao-Dong;Dong Qiao-Yan;Ma Yue;Ke Ya-Jiao;Su Na;Zhang Xiang-Qun;Wang Li-Chen;Cheng Zhao-Hua
We have investigated the magnetic properties and magnetocaloric effects (MCEs) of R 2 Mo 2 O 7 (R= Er, Dy, Gd and Y). Magnetic ground states of R 2 Mo 2 O 7 largely depend on the radius of rare earth ion. Er 2 Mo 2 O 7, Dy 2 Mo 2 O 7 and Y 2 Mo 2 O 7 with small rare earth radius exhibit spin-glass state around 20 K, while Gd 2 Mo 2 O 7 with larger rare earth radius undergoes a ferromagnetic state below 78 K and a reentrant spin-glass behavior below 34 K. Magnetic phase transition leads to magnetocaloric effect. In particular, a natural table-like-Δ S M and a very large refrigerant capacity (RC) value of 94.4 J/kg was observed in a field change of 0–10.5 kOe for Gd 2 Mo 2 O 7 due to two successive magnetic transitions at∼ 78 and∼ 10 K. These notable magnetocaloric properties make the Gd 2 Mo 2 O 7 a potential candidate for low-field Ericsson-cycle magnetic refrigeration in the low temperature range.
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影响因子:
8.6
作者:
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通讯作者:
N. Hanasaki;M. Kinuhara;I. Kézsmárki;S. Iguchi;S. Miyasaka;N. Takeshita;C. Terakura;H. Takagi;Y. Tokura
影响因子:
8.6
作者:
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Tokura, Y.
影响因子:
4
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通讯作者:
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影响因子:
6.2
作者:
Huo, Dexuan;Li, Lingwei;Nishimura, Katsuhiko;Igawa, Hiroto
通讯作者:
Igawa, Hiroto
影响因子:
3.7
作者:
A. O. Pecharsky;Y. Mozharivskyj;K. Dennis;K. Gschneidner;R. Mccallum;G. Miller;V. Pecharsky
通讯作者:
A. O. Pecharsky;Y. Mozharivskyj;K. Dennis;K. Gschneidner;R. Mccallum;G. Miller;V. Pecharsky