Intrinsic multipeak structure in quasiparticle tunneling conductance of high-Tc superconductors

Wei-ming Que; George Kirczenow

doi:10.1103/PhysRevB.38.4601

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Intrinsic multipeak structure in quasiparticle tunneling conductance of high-Tc superconductors

Wei-ming Que, George Kirczenow

DOI 10.1103/PhysRevB.38.4601 · Physical Review B

T1

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Abstract

We present a theory which predicts intrinsic multiple peaks in the quasiparticle tunneling conductance of quasi-two-dimensional (2D) and one-dimensional high-Tc superconductors with pairing mechanisms which involve electrons not just near the Fermi surface but in the whole conduction band. Multiple peaks occur due to singularities in the band-structure density of states. Interestingly, the gapless 2D d-wave superconducting state exhibits a peak in the tunneling conductance which closely resembles the peak due to the gap in an ordinary s-wave superconductor.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown