Large relative cooling power in van der Waals room-temperature ferromagnet Fe5GeTe2

被引：0
|
作者：
Liang, Rui
Liu, Jiawei
Zhou, Liang
Tang, Nujiang [1 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2024年 / 124卷 / 18期
基金：
中国国家自然科学基金;
关键词：
MAGNETIC ENTROPY CHANGE; CRITICAL-BEHAVIOR; TRANSITION;
D O I：
10.1063/5.0200807
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Due to the unique structures, van der Waals (vdW) materials have advantages over traditional magnetothermal materials in manipulating magnetothermal properties through structural modification and in cooling applications in nanodevices. Here, we study the magnetothermal properties of vdW ferromagnet Fe5GeTe2 with Curie temperature around room temperature. The results show that Fe5GeTe2 is a second-order magnetic phase transition material, and its in-plane and out-of-plane values of relative cooling power are large up, respectively, to 299.3 and 269.2 J/kg for a field change of 5 T. Compared to other vdW materials reported, Fe5GeTe2 has the greatest potential for room-temperature magnetic cooling applications.
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页数：6
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