Electronic Structure of Vortices Pinned by Columnar Defects in $$p_x {\pm }{i}{p_{y}}$$ Superconductors.
- Resource Type
- Article
- Authors
- Vadimov, V.; Mel'nikov, A.
- Source
- Journal of Low Temperature Physics. Jun2016, Vol. 183 Issue 5/6, p342-358. 17p.
- Subject
- *SUPERCONDUCTORS
*FLUX pinning
*ELECTRONIC structure
*COLUMNAR structure (Metallurgy)
*SCANNING tunneling microscopy
*ANGULAR momentum (Nuclear physics)
*RELATIVE motion
*COOPER pair
- Language
- ISSN
- 0022-2291
Insulating columnar inclusions in a type II chiral $$p_x \pm i p_y$$ superconductor are shown to affect essentially the electronic structure of pinned vortices, and, as a consequence, the scanning tunneling microscopy (STM) patterns and the microwave response in the vortex phase. The structure of the anomalous spectral branch analyzed within the Bogolubov-de Gennes theory is found to depend strongly on the mutual orientation of the angular momenta of the center of mass and the relative motion of two electrons in the Cooper pair. This dependence reveals itself in the nontrivial behavior of the Hall part of the microwave response and difference of the STM patterns for opposite magnetic field orientations. [ABSTRACT FROM AUTHOR]