HoCo2中两个磁热连续峰的检测

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-04-28 DOI:10.1080/01411594.2023.2203394

M. A. Hamad, H. Alamri, S. M. Elghnam, S. Badawy

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引用次数: 0

摘要

摘要为了模拟HoCo2样品的磁热效应，使用了一个唯象模型（PM）。MCE参数是从PM中推断出来的，作为0.5中磁化强度与温度的建模结果 T.HoCo2表现出两个连续的传统MCE，通过绝热消磁进行冷却。HoCo2表现出双峰MCE行为。建议HoCo2在0–140的显著温度范围内将其用作有用的MR材料 K.因此，HoCo2对MR很有吸引力，因为它的MCE跨越宽的温度范围，特别是氮和氢的液化。

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Detection of two magnetocaloric consecutive peaks in HoCo2

ABSTRACT 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.

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.