Magnetic-field dependence of quasiparticle interference peaks in a d-wave superconductor with weak disorder

T. Pereg-Barnea; M. Franz

doi:10.1103/PhysRevB.78.020509

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Magnetic-field dependence of quasiparticle interference peaks in a d-wave superconductor with weak disorder

T. Pereg-Barnea, M. Franz

DOI 10.1103/PhysRevB.78.020509 · Physical Review B

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Abstract

Quasiparticle interference in a d-wave superconductor with weak disorder produces distinctive peaks in the Fourier-transformed local density of states measured by scanning tunneling spectroscopy. We predict that amplitudes of these peaks can be enhanced or suppressed by applied magnetic field according to a very specific pattern governed by the symmetry of the superconducting order parameter. This calculated pattern agrees with the recent experimental measurement and suggests that the technique could be useful for probing the underlying normal state at high fields.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown