反铁磁DyTe3单晶的各向异性磁热效应

IF 2.4 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Solid State Communications Pub Date : 2025-08-24 DOI:10.1016/j.ssc.2025.116119

Zilu Xia , Lina Jiang , Haifeng Chen , Cuicui Hu , Fang Tang , Yong Fang , Jingguo Hu , Zhida Han

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引用次数: 0

摘要

本文系统地报道了DyTe3单晶的磁性和各向异性磁热效应。磁测量结果表明，在nsamel温度TN≈4.5 K处发生了二级顺磁向反铁磁相变。μ0H//ac平面与μ0H//b轴之间存在较强的磁各向异性，磁化方向沿ac平面易磁化。等温磁化曲线和比热测量显示了磁场诱导的自旋重定向和变磁跃迁。系统评价了MCE的磁熵变化（−ΔSM）、绝热温度变化（ΔTad）和制冷剂容量（RC）。在7 T的电场变化下，沿易平面的最大值为−ΔSM = 14.75 J/kg K， ΔTad = 7.5 K, RC = 162.3 J/kg。由于DyTe3的强磁各向异性，还观察到相当大的旋转MCE。这些结果表明，DyTe3是低温磁制冷应用的有希望的候选者。

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Anisotropic magnetocaloric effect in antiferromagnetic DyTe3 single crystal

We systematically report the magnetic properties and anisotropic magnetocaloric effect (MCE) of DyTe₃ single crystals. Magnetic measurements reveal a second-order paramagnetic to antiferromagnetic phase transition at the Néel temperature T_N ≈ 4.5 K. Strong magnetic anisotropy is observed between μ₀H//ac plane and μ₀H//b axis, with the easy magnetization direction lying along the ac plane. Isothermal magnetization curves and specific heat measurements show field-induced spin reorientation and metamagnetic transitions. The MCE properties, including magnetic entropy change (−ΔS_M), adiabatic temperature change (ΔT_ad), and refrigerant capacity (RC), were systematically evaluated. Under a 7 T field change, maximum values of −ΔS_M = 14.75 J/kg K, ΔT_ad = 7.5 K, and RC = 162.3 J/kg were obtained along the easy plane. A considerable rotating MCE is also observed due to the strong magnetic anisotropy in DyTe₃. These results suggest that DyTe₃ is a promising candidate for low-temperature magnetic refrigeration applications.

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来源期刊

Solid State Communications 物理-物理：凝聚态物理

CiteScore

3.40

自引率

4.80%

发文量

287

审稿时长

51 days

期刊介绍： Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.