Observation of conventional and inverse magnetocaloric effects in (Dy0.6Gd0.4)5Pd2

被引：2
|
作者：
Ghosh, Shuvendu [1 ]
Paramanik, Tapas [1 ]
Das, I [2 ]
机构：
[1] Natl Inst Technol Andhra Pradesh, Sch Sci, Dept Phys, Tadepalligudem 534101, Andhra Pradesh, India
[2] HBNI, CMP Div, Saha Inst Nucl Phys, 1-AF Bidhannagar, Kolkata 700064, W Bengal, India
来源：
INDIAN JOURNAL OF PHYSICS | 2023年 / 97卷 / 06期
关键词：
Rare-earth intermetallic compound; Double magnetic glass transitions; Magnetocaloric effect; TB;
D O I：
10.1007/s12648-022-02531-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the studies of structural, magnetic and magnetocaloric properties in (Dy0.6Gd0.4)(5)Pd-2 compound. The magnetic measurements confirm the presence of double magnetic glass transitions below 58.5 K. Heat capacity data reveal the absence of long-range magnetic ordering. Both conventional and inverse magnetocaloric effects have been observed in the (Dy0.6Gd0.4)(5)Pd-2 compound. The system exhibits a conventional magnetocaloric effect above 20 K with a peak value of magnetic entropy change (-Delta S-M(max)) 7.4 J/kgK at 90 K under the magnetic field change of 70 kOe. The observed value of inverse magnetocaloric effect is similar to 14 J/kgK for 70 kOe external magnetic field change at T= 4.9 K. Inverse magnetocaloric effect can be attributed to the increased randomness in the low-temperature glassy phase, compared to the magnetic glass phase observed in between 20 and 58.5 K.
引用
收藏
页码：1781 / 1786
页数：6
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