Magnetic field evolution of the quasiparticle interference in a d-wave superconductor
arXiv:0802.3936 · doi:10.1103/PhysRevB.78.020509
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.
4 pages, 2 figures; version to appear in PRB/RC
References in corpus (5)
- Scanning tunneling spectroscopy of high-temperature superconductors
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