Effect of paramagnon drag on thermoelectric transport properties: Linear response theory

نویسندگان

چکیده

Paramagnetic materials exhibit a unique thermoelectric effect near the ferromagnetic transition point due to spin fluctuations. This phenomenon is referred as paramagnon drag. In this study, we calculate contribution of drag Seebeck coefficient microscopically based on linear response theory. Consequently, obtain general formula for and then clarify conditions in which enhanced single-band isotropic system. Moreover, coefficients mixture free-electron-like flat bands.

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ژورنال

عنوان ژورنال: Physical Review B

سال: 2022

ISSN: ['1098-0121', '1550-235X', '1538-4489']

DOI: https://doi.org/10.1103/physrevb.105.045101