Transport anomalies across the quantum limit in semimetallic Bi${}_{0.96}$Sb${}_{0.04}$

Abstract

We report on a study of electronic transport in semi-metallic Bi${}_{0.96}$Sb${}_{0.04}$. At zero field, the system is a very dilute Fermi liquid displaying a T${}^2$ resistivity with an enhanced prefactor. Quantum oscillations in resistivity as well as in Hall, Nernst and Seebeck responses of the system are detectable and their period quantifies the shrinking of the Fermi surface with antimony doping. For a field along the trigonal axis, the quantum limit was found to occur at a field as low as 3T. An ultraquantum anomaly at twice this field was detected in both charge transport and Nernst response. Its origin appears to lie beyond the one-particle picture and linked to unidentified many-body effects.

arXiv comment5 pages inculding 4 figures

References in corpus (10)

• Topological Insulators with Inversion Symmetry
• A topological Dirac insulator in a quantum spin Hall phase : Experimental observation of first strong topological insulator
• On the thermoelectricity of correlated electrons in the zero-temperature limit
• Signatures of Electron Fractionalization in Ultraquantum Bismuth
• Nernst effect in semi-metals: the meritorious heaviness of electrons
• Oscillating Nernst-Ettingshausen effect in Bismuth across the quantum limit
• Non-generality of the Kadowaki-Woods ratio in correlated oxides
• Generalized Kadowaki-Woods Relation in Heavy Fermion Systems with Orbital Degeneracy
• Diamagnetism of nodal fermions
• Unambiguous determination of the g-factor for holes in bismuth at high B/T

Cited by in corpus (24)

• Quantum oscillations in a topological insulator Bi_{1-x}Sb_{x}
• Axial anomaly and longitudinal magnetoresistance of a generic three dimensional metal
• Scalable T^2 resistivity in a small single-component Fermi surface
• Nernst and Seebeck effect in a graphene nanoribbon
• Angle-resolved Landau spectrum of electrons and holes in bismuth
• Nematic Valley Ordering in Quantum Hall Systems
• An electronic instability in bismuth far beyond the quantum limit
• Magnetoresistance and valley degree of freedom in bulk bismuth
• Origin of the large anisotropic g-factor of holes in bismuth
• Magnetoresistance of semi-metals: the case of antimony
• Sb concentration dependent structural and resistive properties of polycrystalline Bi-Sb alloys
• Phase diagram of bismuth in the extreme quantum limit
• Bismuth in strong magnetic fields: unconventional Zeeman coupling and correlation effects
• Charge density waves in graphite; towards the magnetic ultra-quantum limit
• Observation of three-dimensional behavior in surface states of bismuth nanowires and the evidence for bulk Bi charge fractionalization
• Hall plateaus at magic angles in bismuth beyond the quantum limit
• Theory of transport property of density wave phases in three-dimensional metals and semimetals under high magnetic field
• Microscopic Theory of a Quantum Hall Ising Nematic: Domain Walls and Disorder
• Magnetoresistive property study of direct and indirect band gap thermoelectric Bi-Sb alloys
• Magneto-transport and Berry phase in magnetically doped Bi${}_{0.97-x}$Sb${}_{0.03}$ single crystals
• Collective excitations and low temperature transport properties of bismuth
• Resonant plasmon-phonon coupling and its role in magneto-thermoelectricity in bismuth
• Nernst quantum oscillations in bulk semi-metals
• High-field immiscibility of electrons belonging to adjacent twinned bismuth crystals