Evidence for spin-triplet superconducting correlations in metal-oxide   heterostructures with non-collinear magnetization
  Heterostructures composed of ferromagnetic La0.7Sr0.3MnO3, ferromagnetic SrRuO3, and superconducting YBa2Cu3Ox were studied experimentally. Structures of composition Au/La0.7Sr0.3MnO3/SrRuO3/YBa2Cu3Ox were prepared by pulsed laser deposition, and their high quality was confirmed by X-ray diffraction and reflectometry. A non-collinear magnetic state of the heterostructures was revealed by means of SQUID magnetometry and polarized neutron reflectometry. We have further observed superconducting currents in mesa-structures fabricated by deposition of a second superconducting Nb layer on top of the heterostructure, followed by patterning with photolithography and ion-beam etching. Josephson effects observed in these mesa-structures can be explained by the penetration of a triplet component of the superconducting order parameter into the magnetic layers. 
Yu.N. Khaydukov, G.A. Ovsyannikov, A.E. Sheyerman, K.Y. Constantinian,   L. Mustafa, T. Keller, M.A. Uribe-Laverde, Yu.V. Ki...
cond-mat.str-el cond-mat.supr-con