Spin injection induced phase transition in YBa2Cu3O7-δ/Nd0.35Sr0.65MnO3 bilayer

S. L. Cheng, J. G. Lin, T. H. Chuang

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The spin injection effects from C-type antiferromagnetic Nd0.35Sr0.65MnO3 (NSMO) to superconductor YBa2Cu3O7-δ (YBCO) are investigated via the measurement of temperature dependent resistivity with input current from 10-2mA to 90 mA. The superconducting transition temperature (Tco) of YBCO decreases with increasing current but at a higher rate with larger thickness of NSMO. Two spin states below Tco are identified as non-equilibrium spin-state and pair-breaking state judging from the width of transition. In particular, the transition from former to later one is observed with NSMO = 30 nm at the current of 30 mA.

Original languageEnglish
Article number17E312
JournalJournal of Applied Physics
Issue number17
StatePublished - 7 May 2015


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