Metastability and paramagnetism in superconducting mesoscopic disks
J. J. Palacios
Abstract
A projected order parameter is used to calculate, not only local minima of the Ginzburg-Landau energy functional, but also saddle points or energy barriers responsible for the metastabilities observed in superconducting mesoscopic disks (Geim et al. Nature 396, 144 (1998)). We calculate the local minima magnetization and find the energetic instability points between vortex configurations with different vorticity. We also find that, for any vorticity, the supercurrent can reverse its flow direction on decreasing the magnetic field before one vortex can escape.
Create a lesson
Related papers
High-Temperature Superconductivity of the Fe-Se-H compound
S. I. Bondarenko, A. A. Prokhorov, N. N. Galtsov et al.
Stabilization of Interband Phase Solitons in Two-Band Noncentrosymmetric Superconducting Rings
Yuriy Yerin, Boris Malomed, Stefan-Ludwig Drechsler et al.
Strain-driven orbital-selective reconstruction and bicollinear-to-stripe evolution in FeTe
Zhenfeng Ouyang, Yin Chen, Yi-Heng Tian et al.
Supercurrent detection and manipulation of topological phase transitions in Shiba-Majorana hybrid systems
Debika Debnath, Ioannis Ioannidis, Paramita Dutta et al.
Exact pair density wave in topological moire flat bands and universal superfluid stiffness
Zhengzhi Wu, Ming-rui Li, Hong Yao
Electrical manipulation of oxygen stoichiometry in multiterminal YBa2Cu3O7-δ junctions
Daniel Stoffels, Caio C. Quaglio-Gomes, Nicolas Lejeune et al.