Physicist at CNRS-Thales Lab, France
Our paper Nature Physics 8, 539 (2012) is on the cover of the July issue of the journal.
The penetration of a superconducting current from a superconductor into a half-metallic ferromagnet is usually forbidden. In this study, we found resonances in the conductance spectra of superconductor/half-metal heterostructures that suggest the occurrence of an unconventional equal-spin Andreev reflection, which allows for the generation and propagation of high-temperature superconducting correlations into the half-metal. This mechanism may open the door to novel spintronic devices.