Topological Heusler Magnets-Driven High-Performance Transverse Nernst Thermoelectric Generators

doi:10.1002/aenm.202400411

IMR OpenIR

	Topological Heusler Magnets-Driven High-Performance Transverse Nernst Thermoelectric Generators
	Chen, Mengzhao 1; Wang, Jialu 2; Liu, Kai 1; Fan, Wusheng 1; Sun, Yan 3; Felser, Claudia 4; Zhu, Tiejun 1; Fu, Chenguang 1
通讯作者	Zhu, Tiejun(zhutj@zju.edu.cn) ; Fu, Chenguang(chenguang_fu@zju.edu.cn)
	2024-02-14
发表期刊	ADVANCED ENERGY MATERIALS
ISSN	1614-6832
页码	9
摘要	Topological magnets (TMs) with the coupled topology of electronic band structures and spin configuration have exhibited exotic transport properties that are overwhelmingly appealing for transverse thermoelectric applications. Despite the continuous discovery of TMs in recent years, the development of Nernst generators has much lagged. Here, high-performance Nernst generators are developed utilizing polycrystalline topological Heusler bulk magnets. Benefiting from the robustness of topological effect to grain boundary scattering, polycrystalline Co2MnGa is found to exhibit a large Nernst thermopower of approximate to 6.5 mu V K-1 at 300 K, which is comparable to the previously reported record value in its single crystal. The developed Nernst generators thereby exhibit excellent performance with an output voltage of 5.4 mV and power of 14.3 mu W, significantly higher than that of Nernst thermopiles assembled using conventional ferromagnets. These results pave the way to advancing TMs with intrinsically large Berry curvature for transverse thermoelectric applications. Polycrystalline topological magnet Co2MnGa is found exhibiting a large anomalous Nernst thermopower of approximate to 6.5 mu V K-1 at 300 K, comparable to the previously reported record value in its single crystal. Prototype bulk Nernst generators utilizing the high-performance polycrystalline Co2MnGa are first assembled, which exhibit much higher output performance than that of conventional magnet-based Nernst devices. image
关键词	anomalous Nernst effect Berry curvature Heusler compounds magnetic topological materials transverse thermoelectrics
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI	10.1002/aenm.202400411
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China ; National Natural Science Foundation of China[92163203] ; National Natural Science Foundation of China[52101275] ; National Natural Science Foundation of China[52271016] ; National Natural Science Foundation of China[52188101] ; Fundamental Research Funds for the Central Universities[226-2023-00001] ; [2019YFA0704900]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001161665900001
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184376
专题	中国科学院金属研究所
通讯作者	Zhu, Tiejun; Fu, Chenguang
作者单位	1.Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon & Adv Semicond Mat, Hangzhou 310058, Peoples R China 2.Hangzhou Normal Univ, Sch Phys, Hangzhou Key Lab Quantum Matter, Hangzhou 311121, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany
推荐引用方式 GB/T 7714	Chen, Mengzhao,Wang, Jialu,Liu, Kai,et al. Topological Heusler Magnets-Driven High-Performance Transverse Nernst Thermoelectric Generators[J]. ADVANCED ENERGY MATERIALS,2024:9.
APA	Chen, Mengzhao.,Wang, Jialu.,Liu, Kai.,Fan, Wusheng.,Sun, Yan.,...&Fu, Chenguang.(2024).Topological Heusler Magnets-Driven High-Performance Transverse Nernst Thermoelectric Generators.ADVANCED ENERGY MATERIALS,9.
MLA	Chen, Mengzhao,et al."Topological Heusler Magnets-Driven High-Performance Transverse Nernst Thermoelectric Generators".ADVANCED ENERGY MATERIALS (2024):9.