Published June 24, 1991 | Version v1
Journal article

Microwave properties of EuBa2Cu3O7-x thin films on MgO

  • 1. NTT Applied Electronics Laboratories, Tokai, Ibaraki 319-11, Japan (Japan)
  • 2. NTT Transmission Systems Laboratories, Tokai, Ibaraki 319-11, Japan (Japan)

Description

We have measured the microwave surface resistance of sputtered EuBa2Cu3O7-x superconducting films on MgO in a gold-plated Invar host cavity at 50 GHz. Low surface resistance of 2 mΩ was achieved even at 77 K and 50 GHz for highly c-axis oriented films with good in-plane epitaxy together with a Tc of 93 K and a Jc of 1.4x106 A/cm2 at 90 K. This surface resistance value is slightly lower than that for a classical superconductor of Nb at the same frequency at the same reduced temperature (T/Tc) of 7.7 K

Additional details

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
58
Journal Issue
25
Series
Appl. Phys. Lett.
Journal Page Range
2981-2983
ISSN
0003-6951
CODEN
APPLA