Researchers find way to form diodes from superconductors

Journal Reference: E. Strambini, M. Spies, N. Ligato, S. Ilić, M. Rouco, Carmen González-Orellana, Maxim Ilyn, Celia Rogero, F. S. Bergeret, J. S. Moodera, P. Virtanen, T. T. Heikkilä, F. Giazotto. Superconducting spintronic tunnel diode. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-29990-2 These novel superconductor diodes, however, operate at much lower temperatures than their semiconductor … Read more

Things are heating up for superconductors

Journal Reference: Erik Johansson, Ferenc Tasnádi, Annop Ektarawong, Johanna Rosen, Björn Alling. The effect of strain and pressure on the electron-phonon coupling and superconductivity in MgB2Benchmark of theoretical methodologies and outlook for nanostructure design. Journal of Applied Physics, 2022; 131 (6): 063902 DOI: 10.1063/5.0078765 “Magnesiumdiboride or MgB2 is an interesting material. It’s a hard material … Read more

Magnetism helps electrons vanish in high-temp superconductors

Journal Reference: Yawen Fang, Gaël Grissonnanche, Anaëlle Legros, Simon Verret, Francis Laliberté, Clément Collignon, Amirreza Ataei, Maxime Dion, Jianshi Zhou, David Graf, Michael J. Lawler, Paul A. Goddard, Louis Taillefer, B. J. Ramshaw. Fermi surface transformation at the pseudogap critical point of a cuprate superconductor. Nature Physics, 2022; DOI: 10.1038/s41567-022-01514-1 However, the super-low temperatures conventional … Read more

Moments of silence point the way towards better superconductors

Journal Reference: E. T. Mannila, P. Samuelsson, S. Simbierowicz, J. T. Peltonen, V. Vesterinen, L. Grönberg, J. Hassel, V. F. Maisi, J. P. Pekola. A superconductor free of quasiparticles for seconds. Nature Physics, 2021; DOI: 10.1038/s41567-021-01433-7 Superconductivity depends on the presence of electrons bound together in a Cooper pair. Two electrons become coupled because of … Read more