PAPER / ARXIV:2609.05130

Semiclassical thermoelectric transport in disordered Dirac electron system Ag2Te

Kentaro Kuga , Keisuke Hirata , Daiki Goto , Ryogo Ishihara , Masaharu Matsunami , Tsunehiro Takeuchi

RESUMO

We investigated the thermoelectric effects of the Dirac electron system Ag2Te under magnetic field. Our anal-ysis based on the Boltzmann semiclassical model associated the disorder with the unconventional magnetic field responses such as linear magnetoresistance, linear Nernst effect, step-like Nernst effect, and sign change in Nernst effect. The analysis also revealed the impurity band near the Fermi energy. We simultaneously clari-fied the serious impact of the thermal Hall effect on the measurement of the Nernst effect, and we proposed the definitive solution. Our careful measurement and analysis will be the standard for the thermoelectric study under magnetic field.

NO MESMO MAPA

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