Nonlinear magnetic field dependence of the conductance in d-wave normal-metal/insulator/superconductor tunnel junctions

M. Fogelström; D. Rainer; J. A. Sauls

doi:10.1103/PhysRevB.70.012503

← Back to search

Nonlinear magnetic field dependence of the conductance in d-wave normal-metal/insulator/superconductor tunnel junctions

M. Fogelström, D. Rainer, J. A. Sauls

DOI 10.1103/PhysRevB.70.012503 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The ab-plane normal-metal/insulator/superconductor-tunnelling conductance in d-wave superconductors shows a zero-bias conductance peak which is predicted to split in a magnetic field. In a pure d-wave superconductor the splitting is linear for fields small on the scale of the thermodynamic critical field. The field dependence is shown to be nonlinear, even at low fields, in the vicinity of a surface phase transition into a local time-reversal symmetry breaking state. The field evolution of the conductance is sensitive to temperature, doping, and the symmetry of the subdominant pairing channel.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-p Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown