Detection of two magnetocaloric consecutive peaks in HoCo2

被引：6

作者：

Hamad, Mahmoud A. ^{[1
]}

Alamri, Hatem R. ^{[2
]}

Elghnam, Sameh M. ^{[3
]}

Badawy, Sayed M. ^{[4
]}

机构：

[1] Higher Inst Engn & Technol, Basic Sci Dept, Alexandria, Egypt

[2] Umm Al Qura Univ, Aljamoum Univ Coll, Phys Dept, Mecca, Saudi Arabia

[3] Alexandria Univ, Fac Sci, Phys Dept, Alexandria, Egypt

[4] Cairo Univ, Fac Med, Natl Ctr Clin & Environm Toxicol, Giza, Egypt

来源：

PHASE TRANSITIONS | 2023年 / 96卷 / 06期

关键词：

Magnetocaloric effect; phenomenological model; HoCo2; magnetic entropy change; MAGNETISM;

D O I：

10.1080/01411594.2023.2203394

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

To simulate the magnetocaloric effect (MCE) of a HoCo2 sample, a phenomenological model (PM) is used. MCE parameters are inferred from PM as the result of modelling for magnetization vs. temperature in 0.5 T. The HoCo2 exhibits two consecutive conventional MCEs with cooling via adiabatic demagnetization. HoCo2 exhibits double peak MCE behaviour. It is recommended that HoCo2 use it as a useful MR material over a temperature range spanning a significant temperature range of 0-140 K. Consequently, HoCo2 is appealing for MR because its MCE spans a wide temperature range, particularly liquefaction of nitrogen and hydrogen.

引用

页码：464 / 469

页数：6

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