Resistivity measurements unveil microscopic properties of CrAs

Abstract

We report resistivity measurements of a CrAs single crystal in a wide temperature range, with the specific aim to assess the applicability of the Bloch-Gruneisen formula for electron-phonon resistivity. We find that the resistance reaches a residual value at Tc=4.2 K and its temperature dependence cannot be fitted only with a suitable Bloch-Gruneisen formula in the whole temperature range, even though we are able to calculate a well defined transport Debye temperature. The observed temperature dependent resistivity seems to suggest a non phonon-mediated superconducting pairing, supporting a magnetic fluctuation mechanism as the likely glue for the superconducting coupling.

arXiv comment5 pages, 2 figures

References in corpus (18)

• Unconventional sign-reversing superconductivity in LaFeAsO_(1-x)F_x
• Unconventional superconductivity in CeIrIn${}_5$ and CeCoIn${}_5$: Specific heat and thermal conductivity studies
• Quantum critical point lying beneath the superconducting dome in iron-pnictides
• Mott transition, antiferromagnetism, and unconventional superconductivity in layered organic superconductors
• Powerlaw optical conductivity with a constant phase angle in high Tc superconductors
• Superconductivity in the vicinity of antiferromagnetic order in CrAs
• Superconductivity of 2.2 K under Pressure in Helimagnet CrAs
• Screening, Coulomb pseudopotential, and superconductivity in alkali-doped Fullerenes
• Detection of an Unconventional Superconducting Phase in the Vicinity of the Strong First-Order Magnetic Transition in CrAs Using ^75As-Nuclear Quadrupole Resonance
• Structural and Magnetic Phase Diagram of CrAs and its Relationship with Pressure-induced Superconductivity
• Pressure dependence of the magnetic order in CrAs: a neutron diffraction investigation
• Quasilinear quantum magnetoresistance in pressure-induced nonsymmorphic superconductor CrAs
• Retardation effects and the Coulomb pseudopotential in the theory of superconductivity
• Pressure-induced electronic phase separation of magnetism and superconductivity in CrAs
• Physical properties and electronic structure of Sr${}_2$Cr${}_3$As${}_2$O${}_2$ containing CrO${}_2$ and Cr${}_2$As${}_2$ square-planar lattices
• First principles study of structural, magnetic and electronic properties of CrAs
• Field-induced Orbital Patterns in Ferromagnetic Layered Ruthenates
• Effect of magnetic fluctuations on the normal state properties of Sr_2RuO_4

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• A minimal tight-binding model for the quasi-one-dimensional superconductor K2Cr3As3
• Quantifying the charge carrier interaction in metallic twisted graphene superlattices
• Intra-chain collinear magnetism and inter-chain magnetic phases in Cr3As3-K-based materials
• Raman scattering study of lattice and magnetic excitations in CrAs
• First order transition in trigonal structure $\text{Ca}{\text{Mn}}_2{\text{P}}_2$
• Tuning interchain ferromagnetic instability in A2Cr3As3 ternary arsenides by chemical pressure and uniaxial strain
• Dimensionality of the superconductivity in the transition metal pnictide WP