Generic seebeck effect from spin entropy

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August undefined, 2024

WebOct 21, 2024 · The spin-Seebeck effect (SSE) is an advective transport process traditionally studied in bilayers composed of a ferromagnet (FM) and a non-magnetic metal (NM) with strong spin-orbit coupling. In a temperature gradient, the flux of magnons in the FM transfers spin-angular momentum to electrons in the NM, which by the inverse spin … WebNov 18, 2015 · The spin entropy had the effect for the Seebeck coefficient, and the Cu 2+ and Fe 4+ ions had the effect of enhancing the electric conductivity. The lattice strain caused low thermal conductivity as a result of the lattice strain of the point defect scattering mechanism. In addition, the lattice strain also caused a shift in the indirect ...

Understanding and design of spin-driven thermoelectrics

Webspin entropy [29, 31]. Owing to the increased spin degener-acy, the large entropy current strongly enhances the Seebeck coeﬃcient in Na x CoO 2. It is conceivable that a system with more adjustable degrees of freedom has the larger potential to be improved. “Thermoelectrics needs a spin,” it was addressed by J. He and T. Tritt recently ... christine cowley

Generic Seebeck effect from spin entropy - ScienceDirect

The electronic structure calculations were performed for Bi 6 Te 9, Bi 5 Cr 1 Te 9 … A simplified interpre- tation of the optical spectrum can be completed by injecting … The observed Seebeck coefficients were all negative in the whole temperature … Magnetic and thermoelectric properties of the skutterudites AT 4 Sb 12 filled with … The magnetism in MnSi is governed by itinerant 3-d electrons with a helical spin … WebMoreover, the enhancement of the chaotropic effect contributed to the entropy due to the disordered structure of complex 3. 11 The spin Seebeck effect has developed after the spin transition and contributing to give the Seebeck coefficient of 1.68 mV K −1 which is lower than a second gradient of complex 2. WebMar 26, 2024 · Europe PMC is an archive of life sciences journal literature. gerhold construction castlewood sd

Generic Seebeck effect from spin entropy - NASA/ADS

Anomalous Thermopower and High ZT in GeMnTe2 Driven by …

WebMar 23, 2024 · 3.4.1 Spin Seebeck measurement system 58 3.5 References 60 4. Impact of magnetic anisotropy on the spin Seebeck effect in YIG/Pt hetero- structures 63 4.1 Introduction 63 4.2 Experiment 66 4.3 Results and Discussion 68 4.3.1 Temperature dependence of longitudinal spin Seebeck effect 68 WebThe spin Seebeck effect (SSE) refers to a direct energy conversion of heat to electricity that exploits magnon current in a ferromagnet (FM)/normal metal (NM) heterostructure. Since SSE is a transverse thermoelectric effect, it can be employed to realize transverse thermoelectric devices, which could potentially overcome the inherent ... gerhold concrete wayne neWebMar 26, 2024 · Europe PMC is an archive of life sciences journal literature. christine cowsert pg\u0026e

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Generic seebeck effect from spin entropy

Large magneto-thermopower in MnGe with topological spin texture

WebMay 24, 2024 · Generating electricity from heat using a spin Seebeck device. Thermoelectric (TE) conversion offers carbon-free power generation from geothermal, waste, body or solar heat, and shows promise to be ... WebMar 3, 2024 · The thermoelectric conversion technique has been explored in a broad range of heat-flow sensors. In this context, the Spin Seebeck Effect emerges as an attractive candidate for biosensor applications, not only for the sensibility improvement but also for the power-saving electronic devices development. Here, we investigate the Longitudinal …

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WebMar 1, 2024 · Generic Seebeck effect from spin entropy. The Innovation 2(2), 100101. How magnetism affects the Seebeck effect is an important issue of wide. WebMar 26, 2024 · How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets, we demonstrate that in itinerant or partially itinerant magnetic …

WebOct 15, 2009 · How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets, we demonstrate that in itinerant or partially itinerant magnetic … WebAug 31, 2006 · How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets, we demonstrate that in itinerant or partially itinerant magnetic …

WebMay 24, 2024 · Generating electricity from heat using a spin Seebeck device. Thermoelectric (TE) conversion offers carbon-free power generation from geothermal, waste, body or solar heat, and shows promise to be ... WebThe measurements of XRD and magnetic susceptibility indicate that the increased Seebeck coefficient is due to the increase of the spin's thermodynamic entropy. Finally, the maximum ZT of 1.06 at 820 K is obtained in Ge 0.8 Na 0.1 Bi 0.1 MnTe 2. This work enriches the physical picture of spin degree of freedom in thermoelectric materials.

WebApr 30, 2005 · How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets, we demonstrate that in itinerant or partially itinerant magnetic …

WebJan 29, 2024 · With the largest ΔC (0.181 J K −1 mol −1 at 25 K) and carrier density n (~1.3 × 10 23 cm −3) 16, we obtain ΔS ( H ) ≤ 0.52 μV K −1, which is again quantitatively insufficient to be a ... christinecoxsfanmailaddressWebDec 25, 2024 · Generic Seebeck Effect From Spin Entropy. Peijie Sun, K. Ramesh Kumar, Meng Lyu, Zhen Wang, Junsen Xiang, Wenqing Zhang. How magnetism affects the Seebeck effect is an important issue widely concerned in the thermoelectric community yet remaining elusive. Based on a thermodynamic analysis of spin degrees of freedom on … christine cox obituaryWebMay 28, 2024 · Generic Seebeck Effect from Spin Entropy. Author: Peijie Sun, K. Ramesh Kumar, Meng Lyu, Zhen Wang, Junsen Xiang, Wenqing Zhang. How magnetism affects the Seebeck effect is an important issue … gerhold-prosaccoWebNov 9, 2024 · U.S. Department of Energy Office of Scientific and Technical Information. Search Scholarly Publications. Search terms: Advanced search options gerhold cristanWebGeneric Seebeck effect from spin entropy The Innovation . 10.1016/j.xinn.2024.100101 gerhold towingWebGeneric Seebeck effect from spin entropy. How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets, we demonstrate that in itinerant or partially ... christine coy fohrWebenhance the Seebeck effect and the thermoelectric power factor is a recent especially hot topic in the thermoelectric field. It has been found that in addition to the spin entropy [11], magnetic inter-actions [12] and spin fluctuations [13] also demonstrate enhancement effects on thermoelec-tric performance. gerhold concrete west point ne