Andreev nanoprobe of half-metallic CrO${}_2$ films using superconducting cuprate tips

C. S. Turel, I. J. Guilaran, P. Xiong +1

Superconducting tips of YBa${}_2$Cu${}_3$O${}_{7-x}$ were used to perform point-contact Andreev reflection spectroscopy on half-metallic CrO${}_2$ thin films. At 4.2K, strong suppre…