Spin-Fluctuation Drag Thermopower of Nearly Ferromagnetic Metals

Abstract

We investigate theoretically the Seebeck effect in materials close to a ferromagnetic quantum critical point to explain anomalous behaviour at low temperatures. It is found that the main effect of spin fluctuations is to enhance the coefficient of the leading $T$-linear term, and a quantum critical behaviour characterized by a spin-fluctuation temperature appears in the temperature dependence of correction terms as in the specific heat.

References in corpus (5)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• On the thermoelectricity of correlated electrons in the zero-temperature limit
• Theory of Quasi-Universal Ratio of Seebeck Coefficient to Specific Heat in Zero-Temperature Limit in Correlated Metals
• Spin-fluctuation dominated electrical transport of Ni3Al at high pressure
• Electrical Conductivity of Fermi Liquids. I. Many-body Effect on the Drude Weight

Cited by in corpus (4)

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• Large antiferromagnetic fluctuation enhancement of the thermopower at a critical doping in magnetic semimetal Cr1+dTe2
• Magnetically Enhanced Thermoelectric Effect Driven by Martensitic Transformation in the Weak Itinerant Ferromagnet Co${}_2$NbSn