Anisotropy in magnetic and transport properties of Fe1-xCoxSb2

Abstract

Anisotropic magnetic and electronic transport measurements were carried out on large single crystals of Fe1-xCoxSb2 (0<= x <=1). The semiconducting state of FeSb2 evolves into metallic and weakly ferromagnetic by substitution of Fe with Co for x<0.5. Further doping induces structural transformation from orthorhombic Pnnm structure of FeSb2 to monoclinic P21/c structure of CoSb2 where semiconducting and diamagnetic ground state is restored again. Large magnetoresistance and anisotropy in electronic transport were observed.

arXiv comment7 pages, 6 figures

References in corpus (4)

• Anisotropy and large magnetoresistance in narrow gap semiconductor FeSb2
• Kondo Insulator description of spin state transition in FeSb2
• First order transition from correlated electron semiconductor to ferromagnetic metal in single crystalline FeSi1-xGex
• The semiconductor-to-ferromagnetic-metal transition in FeSb2

Cited by in corpus (14)

• Prediction of unconventional magnetism in doped FeSb2
• Thermopower of correlated semiconductors : application to FeAs2 and FeSb2
• Thermoelectricity in correlated narrow-gap semiconductors
• Phonon-drag effect in FeGa3
• Ferromagnetic Instability in a Doped Band-Gap Semiconductor FeGa${}_3$
• Unified picture for the colossal thermopower compound FeSb${}_2$
• Electronic correlations in FeGa${}_3$ and the effect of hole doping on its magnetic properties
• Anisotropy in the magnetic and electrical transport properties of Fe1-xCrxSb2
• Colossal Positive Magnetoresistance in a Doped Nearly Magnetic Semiconductor
• Evidence for electron-phonon interaction in Fe${}_{1-x}$M${}_x$Sb${}_2$ (M=Co, Cr) single crystals
• Weak Ferromagnetism in Fe1-xCoxSb2
• Enhanced electron correlations in FeSb${}_2$
• Polaronic transport and thermoelectricity in Fe${}_{1-x}$Co${}_x$Sb${}_2$S${}_4$ ($x$ = 0, 0.1, and 0.2)
• Prototypical many-body signatures in transport properties of semiconductors