- Perspective
Ginzburg-Landau theory of Rashba superconductors: Concave upper critical field
Phys. Rev. B 113, 179601 – Published 4 May, 2026
DOI: https://doi.org/10.1103/f5y4-gv2h
Abstract
Here we develop the application of the Ginzburg-Landau theory to Rashba superconductors, focusing on their unique properties, critical fields, and implications for quantum computing and material design. Rashba coupling mitigates the suppression of superconductivity caused by Zeeman fields, enabling the restoration of superconductivity at finite temperatures. This interaction between Rashba spin-orbit coupling and superconductivity enhances the system's ability to maintain superconducting states despite external magnetic influences. The upper critical field analytic dependence on temperature has a characteristic concave shape.
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Honoring the legacy of Emmanuel Rashba
The passing of Professor Emmanuel Rashba in early 2025 was an irreparable loss to the physics community. For many decades prior, his numerous significant contributions have been driving solid state physics to surprising new places, realizations, and applications. To pay tribute to his many enduring, groundbreaking ideas, Physical Review B presents a special Collection with contributions by some of his disciples, collaborators, and connoisseurs of his mastery in top-shelf solid state research. Papers belonging to the collection will be published through 2026. It was initiated by Mark Dykman and Alexander Efros and colleagues. An Editorial from them and the contributed articles are linked below.
