WebFeb 17, 2024 · The negative sign of the anomalous Nernst thermopower ( ) observed in Mn-Ga ordered alloys is an attractive property for thermoelectric applications exploiting the anomalous Nernst effect (ANE); however, its origin has not been clarified. In this study, to gain insight into the negative , we prepared epitaxial thin films of Mn Ga with ranging ... WebAt a very large magnetic field, the thermopower saturates at ~ kB / e, with only a logarithmic dependence on B and T, as suggested by Eq. 12. Open in viewer. In the limit of vanishing temperature, the chemical potential μ is equal to the Fermi energy EF, and the entropy per unit volume.
Koen Vandaele - Senior Process Chemist - Johnson Matthey
WebDirac semimetals are three dimensional analog of graphene with massless Dirac fermions as low energy electronic excitations. In contrast to Weyl semimetals, the point nodes in … WebZero‐field anomalous Nernst effect. In ferromagnetic materials like Co 3 Sn 2 S 2, internal magnetization induces additional electric voltage orthogonal to the applied temperature gradient, which is referred to as the anomalous Nernst effect (ANE). Therefore, we investigated the dependence of the Nernst thermopower (S xy baucau map
Phys. Rev. B 97, 245425 (2024) - Thermopower and Nernst …
WebMagnetic materials in which thermal transport involves the generation of spin fluxes provide new opportunities to improve the thermal-to-electric energy conversion efficiency over … WebThe calculated spin Nernst conductivity (SNC) of CoGe is also large, being -1.3 (ℏ Planck-constant-over-2-pi \hbar roman_ℏ /e)(A/m K) at room temperature. Due to their semimetallic nature with low electrical conductivity, these topological semimetals may have large spin Hall and spin Nernst angles, being comparable to that of platinum metal. tiling above jacuzzi tub