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Na-ion solid-state electrolytes (Na-SSE) exhibit high potential for electrical energy storage owing to their high energy densities and low manufacturing cost. However, their mechanical properties critical to maintain structural stability at…

Materials Science · Physics 2021-08-13 Junho Jo , Eunseong Choi , Minseon Kim , Kyoungmin Min

Thermoelectric materials can generate clean energy by transforming waste heat into electricity. The effectiveness of thermoelectric materials is measured by the dimensionless figure of merit, ZT. The quest for high ZT materials has drawn…

Materials Science · Physics 2025-09-03 Chung T. Ma , S. Joseph Poon

The non-uniform current distribution arisen from either current crowding effect or hot spot effect provides a method to tailor the interaction between thermal gradient and electron transport in magnetically ordered systems. Here we apply…

Mesoscale and Nanoscale Physics · Physics 2024-09-17 Jiuming Liu , Bin Rong , Hua Bai , Xinqi Liu , Yanghui Liu , Yifan Zhang , Yujie Xiao , Yuzhen Liang , Qi Yao , Liyang Liao , Yumeng Yang , Cheng Song , Xufeng Kou

This work demonstrates high-throughput screening of flexible magnetic materials for efficient transverse thermoelectric conversion based on the anomalous Nernst effect (ANE). The approach integrates automated annealing and contactless…

Spin Seebeck effect (SSE), the generation of spin current from heat, has been extensively studied in a large variety of magnetic materials, including ferromagnets, antiferromagnets, paramagnets, and quantum spin liquids. In this paper, we…

Thermoelectric properties of Half Heusler alloys are predicted by adopting an ensemble modelling approach, specifically the stacking model integrated using Random Forest and XGBoost scheme. Leveraging a diverse dataset encompassing thermal…

Materials Science · Physics 2024-08-02 Vipin K. E , Prahallad Padhan

We have studied thermally driven magnon spin transport (spin Seebeck effect, SSE) in heterostructures of antiferromagnetic $\alpha$-$\mathrm{Cr_2O_3}$ and Pt at low temperatures. Monitoring the amplitude of the local and nonlocal SSE…

Mesoscale and Nanoscale Physics · Physics 2021-02-26 Prasanta Muduli , Richard Schlitz , Tobias Kosub , René Hübner , Artur Erbe , Denys Makarov , Sebastian T. B. Goennenwein

Using first-principles approaches, we have investigated the thermoelectric properties and the energy conversion efficiency of the paired metal-Br-Al junction. Owing to the narrow states in the vicinity of the chemical potential, the…

Mesoscale and Nanoscale Physics · Physics 2011-01-21 Yu-Shen Liu , Hsuan-Te Yao , Yu-Chang Chen

The spin Seebeck effect is studied across a charge insulating magnetic junction, in which thermal-spin conjugate transport is assisted by the exchange interactions between the localized spin in the center and electrons in metallic leads. We…

Mesoscale and Nanoscale Physics · Physics 2014-06-23 Jie Ren , Jonas Fransson , Jian-Xin Zhu

In recent years, new spin-dependent thermal effects have been discovered in ferromagnets, stimulating a growing interest in spin caloritronics, a field that exploits the interaction between spin and heat currents. Amongst the most…

Mesoscale and Nanoscale Physics · Physics 2018-04-26 Juan F. Sierra , Ingmar Neumann , Jo Cuppens , Bart Raes , Marius V. Costache , Sergio O. Valenzuela

We investigate the thermoelectric properties of a quantum dot coupled to ferromagnetic and superconducting electrodes. The combination of spin polarized tunneling at the ferromagnetic-quantum dot interface and the application of an external…

Mesoscale and Nanoscale Physics · Physics 2016-08-10 Sun-Yong Hwang , Rosa Lopez , David Sanchez

Thermoelectric energy conversion is an attractive technology for generating electricity from waste heat and using electricity for solid-state cooling. However, conventional manufacturing processes for thermoelectric devices are costly and…

We develop a theory of the spin Seebeck effect (SSE) in paramagnets as well as in antiferromagnets at elevated temperatures where the classical limit of the fluctuation-dissipation theorem is applicable. Employing dissipative stochastic…

Mesoscale and Nanoscale Physics · Physics 2019-08-27 Yutaka Yamamoto , Masanori Ichioka , Hiroto Adachi

The semiconductiong ${\alpha'}$-borophene nanoribbon (${\alpha'}$-BNR) due to its incredible properties such as high stability and great mobility of carriers demostrates high-efficiency in thermoelectric devices. These properties enable us…

Mesoscale and Nanoscale Physics · Physics 2024-12-20 F. Ghasemzadeh , M. Farokhnezhad , M. Esmaeilzadeh

We present measurements of the spin Seebeck effect (SSE) by a technique that combines alternating currents (AC) and direct currents (DC). The method is applied to a ferrimagnetic insulator/heavy metal bilayer, Y$_3$Fe$_5$O$_{12}$(YIG)/Pt.…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Yizhang Chen , Debangsu Roy , Egecan Cogulu , Houchen Chang , Mingzhong Wu , Andrew D. Kent

Creating, manipulating and detecting spin polarized carriers are the key elements of spin based electronics. Most practical devices use a perpendicular geometry in which the spin currents, describing the transport of spin angular momentum,…

Mesoscale and Nanoscale Physics · Physics 2012-01-17 Abraham Slachter , Frank Lennart Bakker , Jean-Paul Adam , Bart Jan van Wees

Transverse thermoelectric generation using magnetic materials is essential to develop active thermal engineering technologies, for which the improvements of not only the thermoelectric output but also applicability and versatility are…

We report the experimental observation of the spin Seebeck effect (SSE) in Ag/CoFe noble metal/magnetic metal bilayers with a longitudinal structure. Thermal voltages jointly generated by the anomalous Nernst effect (ANE) and the SSE were…

Materials Science · Physics 2015-10-29 Y. Sheng , M. Y. Yang , Y. Cao , K. M. Cai , G. N. Wei , G. H. Yu , B. Zhang , X. Q. Ma , K. Y. Wang

The atomic variations of electronic wavefunctions at the surface and electron scattering near a defect have been detected unprecedentedly by tracing thermoelectric voltages given a temperature bias [Cho et al., Nature Mater. 12, 913…

Mesoscale and Nanoscale Physics · Physics 2014-04-02 Eui-Sup Lee , Sanghee Cho , Ho-Ki Lyeo , Yong-Hyun Kim

We evaluated the thermoelectric properties of longitudinal spin Seebeck devices by using ten different transition metals (TMs). Both the intensity and sign of spin Seebeck coefficients were noticeably dependent on the degree of the inverse…

Materials Science · Physics 2014-08-14 M. Ishida , A. Kirihara , H. Someya , K. Uchida , S. Kohmoto , E. Saitoh , T. Murakami
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