氙型 HoPO4 的低温磁致性能

IF 1.9 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Pramana Pub Date : 2024-09-23 DOI:10.1007/s12043-024-02831-1

Assaad Elouafi, Sara Ezairi, Fatima Lmai, Abdeslam Tizliouine

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引用次数: 0

摘要

采用固态法制备了正磷酸钬（HoPO4）。XRD 图谱分析证明，HoPO4 以四方结构（I41\ (/\)amd）结晶。在50 kOe的磁场下，2.4 K时的最大磁熵变（-\(Δ {S}_\text{M}}^{\text{max}} ）和相对冷却功率（RCP）分别达到34.5 J\(/\)kg-K 和414.84 J kg-1。最低的转变温度和巨大的磁致效应（MCE）表明，HoPO4 是超流体氦磁制冷应用的潜在候选材料。

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Cryogenic magnetocaloric properties in Xenotime-type HoPO4

Holmium orthophosphate (HoPO₄) was prepared using the solid-state method. The XRD pattern analyses have proved that HoPO₄ crystallises in the tetragonal structure (I4₁\(/\)amd). The maximum magnetic entropy change (−\(\Delta {S}_{\text{M}}^{\text{max}})\) and the relative cooling power (RCP) reach 34.5 J\(/\)kg·K and 414.84 J kg⁻¹ at 2.4 K under a magnetic field of 50 kOe, respectively. The lowest transition temperature and the large magnetocaloric effect (MCE) showed that HoPO₄ is a potential candidate for superfluid helium magnetic refrigeration applications.

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来源期刊

Pramana 物理-物理：综合

CiteScore

3.60

自引率

7.10%

发文量

206

审稿时长

3 months

期刊介绍： Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.