Enhancing properties of high-temperature superconducting step-edge Josephson junctions by nano-multilayers with a small mismatch
A new technology for high temperature superconducting Josephson tunnelling junctions is developed to enhance their properties for applications on-a-chip, avoiding additional fabrication complexity. Junctions with alternating nano-layers of YBa2Cu3O7 and NdBa2Cu3O7 superconductors with a small mismatch between their crystal lattices exhibit stronger tunneling properties due to tuning the artificial grain boundary interfaces of the junctions.
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Pan, A. V., Shcherbakova, O. V., Fedoseev, S. A., Golovchanskiy, I. A., Attard, D., Lam, S. K.H., Du, J., Foley, C., Rubanov, S. & Suvorova, A. (2014). Enhancing properties of high-temperature superconducting step-edge Josephson junctions by nano-multilayers with a small mismatch. Advanced Materials Interfaces, 1 (3), 1-6.