Interplay between Superconductivity and Antiferromagnetism in a Multi-layered System

Abstract

Based on a microscopic model, we study the interplay between superconductivity and antiferromagnetism in a multi-layered system, where two superconductors are separated by an antiferromagnetic region. Within a self-consistent mean-field theory, this system is solved numerically. We find that the antiferromagnetism in the middle layers profoundly affects the supercurrent flowing across the junction, while the phase difference across the junction influences the development of antiferromagnetism in the middle layers. This study may not only shed new light on the mechanism for high-$T_c$ superconductors, but also bring important insights to building Josephson-junction-based quantum devices, such as SQUID and superconducting qubit.

4+ pages, 5 figures, Accepted for publication in Phys. Rev. B

References in corpus (4)

• Superconducting Circuits and Quantum Information
• An explanation for a universality of transition temperatures in families of copper oxide superconductors
• Uniform Mixing of High-Tc Superconductivity and Antiferromagnetism on a Single CuO2 Plane in Hg-based Five-layered Cuprate
• Effects of antiferromagnetic planes on the superconducting properties of multilayered high-Tc cuprates