Enhanced electron correlations in FeSb${}_2$

Abstract

FeSb${}_2$ has been recently identified as a new model system for studying many-body renormalizations in a $d$-electron based narrow gap semiconducting system, strongly resembling FeSi. The electron-electron correlations in FeSb${}_2$ manifest themselves in a wide variety of physical properties including electrical and thermal transport, optical conductivity, magnetic susceptibility, specific heat and so on. We review some of the properties that form a set of experimental evidences revealing the crucial role of correlation effects in FeSb${}_2$. The metallic state derived from slight Te doping in FeSb${}_2$, which has large quasiparticle mass, will also be introduced.

9 pages, 7 figures; submitted to Annalen der Physik

References in corpus (11)

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Cited by in corpus (8)

• Phonon-drag effect in FeGa3
• Transport, Thermal, and Magnetic Properties of the Narrow-Gap Semiconductor CrSb2
• Highly Dispersive Electron Relaxation and Colossal Thermoelectricity in the Correlated Semiconductor FeSb${}_2$
• Entropy, frustration and large thermopower of doped Mott insulators on the fcc lattice
• Metallic surface states in a correlated d-electron topological Kondo insulator candidate FeSb2
• Electronic structure and magnetic properties of CrSb${}_2$ and FeSb${}_2$ investigated via ab-initio calculations
• Maximum entropy analytic continuation for frequency-dependent transport coefficients with non-positive spectral weight
• Electronic Griffiths Phase in the Te - Doped Semiconductor FeSb${}_2$