Hybrid superconducting mesa-heterostructure with manganite-ruthenate interlayer
Paper in proceedings, 2014

We present experimental data on Josephson effect in hybrid superconducting mesa-heterostructures (HSMH) with composite manganite-ruthenate interlayer. The HSMH base electrode consisted of the cuprate superconductor YBa 2Cu3O7 grown epitaxially on a NdGaO substrate using laser ablation. The interlayer was composed from in-situ deposited SrRuO3 (F1) and La0.7Sr0.3MnO3 (F2) thin films, each characterized by different directions of magnetization. The top electrode was Nb/Au thin film. A superconducting current was observed when the interlayer thickness was well above the correlation length, determined by the exchange field in F1 and F2. Obtained IC (H) dependences and non-sinusoidal current-phase relation evaluated from microwave measurements are discussed in terms of generation of long-range spin triplet superconducting current component in heterostructures with interfaces of singlet superconductors and bilayer ferromagnetic materials with different spatial directions of magnetization.

Author

K. Y. Constantinian

National Research University of Electronic Technology (MIET)

Gennady Ovsyannikov

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

A. E. Sheyerman

National Research University of Electronic Technology (MIET)

A. V. Shadrin

Chalmers, Microtechnology and Nanoscience (MC2)

Yu V. Kislinskiǐ

National Research University of Electronic Technology (MIET)

Alexei Kalaboukhov

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Dag Winkler

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

Vol. 507 Part 4 Art. no. 042007- 042007

Subject Categories

Nano Technology

DOI

10.1088/1742-6596/507/4/042007

More information

Created

10/8/2017