Proximity effect of superconductivity and magnetism in the Nd 0.7Ca0.3MnO3/YBa2Cu 3O7 bilayer
Journal
Journal of Applied Physics
Journal Volume
101
Journal Issue
9
Date Issued
2007
Author(s)
Abstract
Temperature and current dependent resistivity are investigated in the single YBa2Cu3O7 layer and the YBa2Cu3O7∕Nd0.7Ca0.3MnO3 (YBCO∕NCMO) bilayer with the thickness of each layer being 200nm. Our results show that the onset temperature (Tcon) of the superconducting transition in YBCO layer is linearly suppressed by current with a rate of 0.1K∕mA. However, Tcon of the NCMO∕YBCO bilayer is reduced effectively from 54to30K with increasing the applied current from 1to40mA, which indicates an enhanced effect of pair breaking by the polarized quasiparticles.
Type
conference paper