Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1785877 | Current Applied Physics | 2015 | 5 Pages |
Abstract
Two-stacked submicron Josephson junctions devices were fabricated in a-axis oriented YBaCu3O7 and PrBa2Cu3O7 (Y123/Pr123) multi layered thin films using focused ion beam milling technique. The transition temperature and critical current density (Jc) of the device are about 83Â K and 5Â ÃÂ 105Â A/cm2 at 20Â K, respectively. The device was irradiated with external microwave of 10Â GHz and studied at 20Â K. The microwave induced voltage steps are observed in I-V characteristics. The supercurrent branch become resistive above a certain microwave power and also the Jc was suppressed as we increased the microwave power. Magnetic field modulation of critical current shows periodicity of about 2000 gauss correspond to the Josephson junctions in the stack.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
S. Saini, P. Mele, M. Mukaida, S.-J. Kim,