Field-controlled conical intersections in the vortex lattice of quasi 2D pure strongly type-II superconductors at high magnetic fields

TL;DR

This paper demonstrates how external magnetic fields can control Dirac fermion structures in the vortex lattice of pure 2D strongly type-II superconductors, affecting magneto-oscillations and potentially observable in quasi 2D organic superconductors.

Contribution

It introduces a method to control Dirac fermion structures in vortex lattices via magnetic fields in 2D superconductors, highlighting a new way to manipulate quantum states.

Findings

Magnetic field effectively controls Dirac fermion structures.

Field-induced modulation of magneto-oscillations observed.

Potential for experimental observation in organic superconductors.

Abstract

It is shown that the Dirac fermion structures created in the middle of the Landau bands in the vortex-lattice state of a pure 2D strongly type-II superconductor at half-integer filling factors can be effectively controlled by the external magnetic field. The resulting field-induced modulation of the magneto-oscillations is shown to arise from Fermi-surface resonance scattering in the vortex core regions. Possible observation of the predicted effect in a quasi 2D organic superconductor is discussed.