Nematic order in the vicinity of a vortex in superconducting FeSe

Abstract

We present a phenomenological theory of the interplay between nematic order and superconductivity in the vicinity of a vortex induced by an applied magnetic field. Nematic order can be strongly enhanced in the vortex core. As a result, the vortex cores become elliptical in shape. For the case where there is weak bulk nematic order at zero magnetic field, the field-induced eccentricity of the vortex core has a slow power-law decay away from the core. Conversely, if the nematic order is field-induced, then the eccentricity is confined to the vortex core. We discuss the relevance of our results to recent scanning tunnelling microscopy experiments on FeSe (Song et al., Science 332, 1410 (2011)).

23 pages, 6 figures; (v2) slightly modified title, added references; (v3) published version

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Cited by in corpus (16)

• Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides
• Antiferroquadrupolar and Ising-Nematic Orders of a Frustrated Bilinear-Biquadratic Heisenberg Model and Implications for the Magnetism of FeSe
• Anisotropic vortex lattice structures in the FeSe superconductor
• Competition between superconductivity and nematic order : anisotropy of superconducting coherence length
• Suppression of superconductivity at nematic critical point in underdoped cuprates
• Impact of Dynamic Orbital Correlations on Magnetic Excitations in the Normal State of Iron-Based Superconductors
• Disordered hyperuniform vortex matter with rhombic distortions in FeSe at low fields
• Electronic vortex structure of Fe-based superconductors: application to LiFeAs
• Competition between superconductivity and nematic order in high-$T_c$ superconductor
• Renormalization group analysis of competition between distinct order parameters
• Anisotropic superfluidity of two-dimensional excitons in a periodic potential
• Intertwined Orders and the Physics of High Temperature Superconductors
• Variation of shear moduli across superconducting phase transitions
• Local spin-density-wave order inside vortex cores in multiband superconductors
• A Ginzburg-Landau approach to the vortex-domain wall interaction in superconductors with nematic order
• Vortices in a Ginzburg Landau Theory of Superconductors with Nematic Order