Triplet superconducting correlations in oxide heterostructures with a composite ferromagnetic interlayer
Artikel i vetenskaplig tidskrift, 2013

The superconducting current induced by the penetration of the long-range triplet component of superconducting correlations into a composite ferromagnetic interlayer has been detected in mesa-heterostructures based on oxide cuprate superconductors YBa2Cu3O7 - delta and Au/Nb bilayer films with the composite oxide interlayer that is made of ferromagnetic films of manganite La0.7Sr0.3MnO3 and ruthenate SrRuO3 and has a thickness much larger than the length of correlations determined by the exchange field. The deviation of the superconducting current in the mesa-heterostructure with the fraction of the second harmonic of 13% from a sinusoidal current-phase relation has been detected; this deviation can also be due to the generation of the triplet component of superconducting correlations in the ferromagnet.

thin-films

Författare

Gennady Ovsyannikov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

A. E. Sheyerman

National Research University of Electronic Technology (MIET)

Moscow Institute of Physics and Technology

A. V. Shadrin

Chalmers University of Technology

National Research University of Electronic Technology (MIET)

Yu V. Kislinskiǐ

National Research University of Electronic Technology (MIET)

K. Y. Constantinian

National Research University of Electronic Technology (MIET)

Alexei Kalaboukhov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

JETP Letters

0021-3640 (ISSN) 1090-6487 (eISSN)

Vol. 97 145-148

Ämneskategorier

Fysik

DOI

10.1134/s0021364013030089