Elasticity-Driven Nanoscale Electronic Structure in Superconductors

Abstract

The effects of long-range anisotropic elastic deformations on electronic structure in superconductors are analyzed within the framework of the Bogoliubov-de Gennes equations. Cases of twin boundaries and isolated defects are considered as illustrations. We find that the superconducting order parameter is depressed in the regions where pronounced lattice deformation occurs. The calculated local density of states suggests that the electronic structure is strongly modulated in response to lattice deformations, and propagates to longer distances. In particular, this allows the trapping of low-lying quasiparticle states around defects. Some of our predictions can be directly tested by STM experiments.

5 pages, 5 figures, reference added, accepted to Physical Review Letters

References in corpus (1)

• Experimental test for subdominant superconducting phases with complex order parameters in cuprate grain boundary junctions

Cited by in corpus (12)

• Complexity in Strongly Correlated Electronic Systems
• Spectroscopic Imaging STM Studies of Electronic Structure in the Superconducting and Pseudogap Phases of Cuprate High-Tc Superconductors
• Conventional superconductivity in quasicrystals
• Insulator to Metal Transition Induced by Disorder in a Model for Manganites
• Spatial inhomogeneity and chiral symmetry of the lattice incommensurate supermodulation in high temperature superconductor Bi2Sr2CaCu2O8+y
• Topological kinematic constraints: quantum dislocations and the glide principle
• Electronic Structure of the Cuprate Superconducting and Pseudogap Phases from Spectroscopic Imaging STM
• A 4-unit-cell superstructure in optimally doped YBa2Cu3O6.92 superconductor
• Atomic scale lattice distortions and domain wall profiles
• Anomalous proximity effect in gold coated (110) $YB{a}_{2}C{u}_3{O}_{7-\delta }$ films: Penetration of the Andreev bound states
• Atomic scale elastic textures coupled to electrons in superconductors
• Anomalous ordering in inhomogeneously strained materials