Shadow on the wall cast by an Abrikosov vortex

Graser S, Iniotakis C, Dahm T, Schopohl N (2004)
Physical Review Letters 93(24).

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Abstract
At the surface of a d-wave superconductor, a zero-energy peak in the quasiparticle spectrum can be observed. This peak appears due to Andreev bound states and is maximal if the nodal direction of the d-wave pairing potential is perpendicular to the boundary. We examine the effect of a single Abrikosov vortex in front of a reflecting boundary on the zero-energy density of states. We can clearly see a splitting of the low-energy peak and therefore a suppression of the zero-energy density of states in a shadowlike region extending from the vortex to the boundary. This effect is stable for different models of the single Abrikosov vortex, for different mean free paths and also for different distances between the vortex center and the boundary. This observation promises to have also a substantial influence on the differential conductance and the tunneling characteristics for low excitation energies.
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Graser S, Iniotakis C, Dahm T, Schopohl N. Shadow on the wall cast by an Abrikosov vortex. Physical Review Letters. 2004;93(24).
Graser, S., Iniotakis, C., Dahm, T., & Schopohl, N. (2004). Shadow on the wall cast by an Abrikosov vortex. Physical Review Letters, 93(24).
Graser, S., Iniotakis, C., Dahm, T., and Schopohl, N. (2004). Shadow on the wall cast by an Abrikosov vortex. Physical Review Letters 93.
Graser, S., et al., 2004. Shadow on the wall cast by an Abrikosov vortex. Physical Review Letters, 93(24).
S. Graser, et al., “Shadow on the wall cast by an Abrikosov vortex”, Physical Review Letters, vol. 93, 2004.
Graser, S., Iniotakis, C., Dahm, T., Schopohl, N.: Shadow on the wall cast by an Abrikosov vortex. Physical Review Letters. 93, (2004).
Graser, S, Iniotakis, C, Dahm, Thomas, and Schopohl, N. “Shadow on the wall cast by an Abrikosov vortex”. Physical Review Letters 93.24 (2004).
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3 Citations in Europe PMC

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Phase diagram of the electron-doped La2-xCexCuO4 cuprate superconductor from Andreev bound states at grain boundary junctions.
Wagenknecht M, Koelle D, Kleiner R, Graser S, Schopohl N, Chesca B, Tsukada A, Goennenwein ST, Gross R., Phys. Rev. Lett. 100(22), 2008
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PMID: 18518324
Effect of surface Andreev bound states on the Bean-Livingston barrier in d-wave superconductors.
Iniotakis C, Dahm T, Schopohl N., Phys. Rev. Lett. 100(3), 2008
PMID: 18233026

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