Matches in SemOpenAlex for { <https://semopenalex.org/work/W4380876145> ?p ?o ?g. }
- W4380876145 abstract "Understanding of spin-heat coupling mechanisms and magnetothermoelectric phenomena, including the anomalous Nernst effect (ANE), in emergent quaternary Heusler alloys is of practical importance for applications in thermal management and energy harvesting. Here, we demonstrate an intrinsic Berry curvature mediated anomalous Nernst thermopower in CoFeVSb, which orders magnetically at high temperature (${T}_{C}ensuremath{approx}850phantom{rule{0.16em}{0ex}}mathrm{K}$) with a large saturation magnetization of $ensuremath{approx}2.2phantom{rule{0.28em}{0ex}}{ensuremath{mu}}_{B}/mathrm{f}.mathrm{u}.$ at room temperature. We show that the electron-electron elastic and electron-magnon inelastic scattering dominate longitudinal electrical transport at low temperatures ($Tensuremath{le}50phantom{rule{0.28em}{0ex}}mathrm{K}$), whereas the electron-phonon and electron-magnon scatterings govern it at higher $phantom{rule{0.28em}{0ex}}T$. The longitudinal thermopower is resulted mainly from the diffusive contribution with a very large longitudinal Seebeck coefficient ($42phantom{rule{0.28em}{0ex}}ensuremath{mu}mathrm{V}phantom{rule{0.28em}{0ex}}phantom{rule{0.28em}{0ex}}{mathrm{K}}^{ensuremath{-}1}$ at 395 K). The value of the anomalous Nernst coefficient (${S}_{mathrm{ANE}}$) for CoFeVSb at room temperature is $0.039phantom{rule{0.28em}{0ex}}ensuremath{mu}mathrm{V}phantom{rule{0.28em}{0ex}}{mathrm{K}}^{ensuremath{-}1}$ which is higher than the compressively strained $mathrm{SrRu}{mathrm{O}}_{3}$ film ($0.03phantom{rule{0.28em}{0ex}}ensuremath{mu}mathrm{V}phantom{rule{0.28em}{0ex}}phantom{rule{0.28em}{0ex}}{mathrm{K}}^{ensuremath{-}1}$) as well as the spin gapless semiconductor CoFeCrGa ($0.018phantom{rule{0.28em}{0ex}}ensuremath{mu}mathrm{V}phantom{rule{0.28em}{0ex}}phantom{rule{0.28em}{0ex}}{mathrm{K}}^{ensuremath{-}1}$). On lowering $T$, both the ordinary Nernst coefficient and carrier mobility increase but an opposite trend is found for ${S}_{mathrm{ANE}}$. Our ab initio simulations reveal the topological semimetallic nature of CoFeVSb with a pair of Weyl points. These Weyl crossings result in a significant contribution to the Berry curvature, leading to an intrinsic anomalous Hall conductivity (${ensuremath{sigma}}_{xy}^{mathrm{AHE}}$) of $ensuremath{approx}85$ S/cm, which matches well with experiment (77 S/cm at 2 K). Our experimental findings and ab initio calculations support the dominance of the intrinsic Berry curvature in the observed ANE. The ratio of ${ensuremath{sigma}}_{xy}^{mathrm{AHE}}$ to the transverse anomalous thermoelectric conductivity (${ensuremath{alpha}}_{xy}^{mathrm{ANE}}$) shows an increasing trend with $T$ attaining a sizable fraction of $phantom{rule{0.28em}{0ex}}frac{{k}_{B}}{e}phantom{rule{0.28em}{0ex}}(ensuremath{approx}0.35frac{{k}_{B}}{e})$ at room temperature." @default.
- W4380876145 created "2023-06-17" @default.
- W4380876145 creator A5005368428 @default.
- W4380876145 creator A5066886407 @default.
- W4380876145 creator A5069286590 @default.
- W4380876145 creator A5072095557 @default.
- W4380876145 creator A5075359796 @default.
- W4380876145 creator A5088746092 @default.
- W4380876145 date "2023-06-16" @default.
- W4380876145 modified "2023-09-27" @default.
- W4380876145 title "Intrinsic Berry curvature driven anomalous Nernst thermopower in the semimetallic Heusler alloy CoFeVSb" @default.
- W4380876145 cites W1793248464 @default.
- W4380876145 cites W1922329752 @default.
- W4380876145 cites W1969318845 @default.
- W4380876145 cites W1972630207 @default.
- W4380876145 cites W1994715177 @default.
- W4380876145 cites W1995952816 @default.
- W4380876145 cites W2000564135 @default.
- W4380876145 cites W2003800781 @default.
- W4380876145 cites W2027137049 @default.
- W4380876145 cites W2027480190 @default.
- W4380876145 cites W2029741576 @default.
- W4380876145 cites W2038114561 @default.
- W4380876145 cites W2041838433 @default.
- W4380876145 cites W2042938036 @default.
- W4380876145 cites W2045048386 @default.
- W4380876145 cites W2048490172 @default.
- W4380876145 cites W2079204726 @default.
- W4380876145 cites W2084936815 @default.
- W4380876145 cites W2115841574 @default.
- W4380876145 cites W2121448251 @default.
- W4380876145 cites W2151796371 @default.
- W4380876145 cites W2164805481 @default.
- W4380876145 cites W2165472443 @default.
- W4380876145 cites W2314947269 @default.
- W4380876145 cites W2499906541 @default.
- W4380876145 cites W2581661777 @default.
- W4380876145 cites W2736348097 @default.
- W4380876145 cites W2944313522 @default.
- W4380876145 cites W2955808257 @default.
- W4380876145 cites W2959191709 @default.
- W4380876145 cites W2982404665 @default.
- W4380876145 cites W3003199429 @default.
- W4380876145 cites W3015680568 @default.
- W4380876145 cites W3018624871 @default.
- W4380876145 cites W3020184170 @default.
- W4380876145 cites W3020833317 @default.
- W4380876145 cites W3037912681 @default.
- W4380876145 cites W3098467013 @default.
- W4380876145 cites W3098523090 @default.
- W4380876145 cites W3099351956 @default.
- W4380876145 cites W3100974677 @default.
- W4380876145 cites W3101443208 @default.
- W4380876145 cites W3102157866 @default.
- W4380876145 cites W3105271190 @default.
- W4380876145 cites W3126800970 @default.
- W4380876145 cites W3134530235 @default.
- W4380876145 cites W3137179144 @default.
- W4380876145 cites W3154225320 @default.
- W4380876145 cites W3199371376 @default.
- W4380876145 cites W3212295858 @default.
- W4380876145 cites W3217030641 @default.
- W4380876145 cites W4206466341 @default.
- W4380876145 cites W4225620587 @default.
- W4380876145 cites W4283022845 @default.
- W4380876145 cites W4306751339 @default.
- W4380876145 doi "https://doi.org/10.1103/physrevb.107.l220403" @default.
- W4380876145 hasPublicationYear "2023" @default.
- W4380876145 type Work @default.
- W4380876145 citedByCount "0" @default.
- W4380876145 crossrefType "journal-article" @default.
- W4380876145 hasAuthorship W4380876145A5005368428 @default.
- W4380876145 hasAuthorship W4380876145A5066886407 @default.
- W4380876145 hasAuthorship W4380876145A5069286590 @default.
- W4380876145 hasAuthorship W4380876145A5072095557 @default.
- W4380876145 hasAuthorship W4380876145A5075359796 @default.
- W4380876145 hasAuthorship W4380876145A5088746092 @default.
- W4380876145 hasConcept C112625512 @default.
- W4380876145 hasConcept C121332964 @default.
- W4380876145 hasConcept C147120987 @default.
- W4380876145 hasConcept C17269025 @default.
- W4380876145 hasConcept C17525397 @default.
- W4380876145 hasConcept C184501600 @default.
- W4380876145 hasConcept C204382992 @default.
- W4380876145 hasConcept C22448393 @default.
- W4380876145 hasConcept C26873012 @default.
- W4380876145 hasConcept C62520636 @default.
- W4380876145 hasConcept C63024428 @default.
- W4380876145 hasConcept C82217956 @default.
- W4380876145 hasConcept C90002209 @default.
- W4380876145 hasConceptScore W4380876145C112625512 @default.
- W4380876145 hasConceptScore W4380876145C121332964 @default.
- W4380876145 hasConceptScore W4380876145C147120987 @default.
- W4380876145 hasConceptScore W4380876145C17269025 @default.
- W4380876145 hasConceptScore W4380876145C17525397 @default.
- W4380876145 hasConceptScore W4380876145C184501600 @default.
- W4380876145 hasConceptScore W4380876145C204382992 @default.
- W4380876145 hasConceptScore W4380876145C22448393 @default.
- W4380876145 hasConceptScore W4380876145C26873012 @default.
- W4380876145 hasConceptScore W4380876145C62520636 @default.