Current enhanced magnetic proximity in Nd0.7Ca0.3MnO3/YBa2Cu3O7 bilayer

Journal
Applied Physics Letters
Journal Volume
Vol. 90
Journal Issue
Issue 16
Pages
162504
Date Issued
2007
Author(s)
Hsu, D.
Lin, J.G.
Chang, C.P.
Chen, C.H.
Chiang, C.H.
Chang, W.C.
DOI
URI
Abstract
The Nd0.7Ca0.3MnO3/YBa2Cu3O7 (NCMO/YBCO) bilayer is fabricated with the method of pulsed laser deposition, and the current dependent proximity effects are investigated. Our experimental data show that the suppression rate of superconducting transition temperature (Tc) with respect to the applied current (> 1 mA) is enhanced by one order of magnitude in NCMO/YBCO compared with that in pure YBCO. The enhanced Tc suppression is attributed to pair breaking via the interactions with the spin-polarized quasi-particles and the magnetic exchange, in association with a current-induced melting of the charge-order state in NCMO. © 2007 American Institute of Physics.
SDGs

[SDGs]SDG7

Type
journal article

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