Spin injection induced phase transition in YBa{sub 2}Cu{sub 3}O{sub 7−δ}/Nd{sub 0.35}Sr{sub 0.65}MnO{sub 3} bilayer

Journal Article · Thu May 07 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4914534· OSTI ID:22410148

Cheng, S. L. ^[1]; Chuang, T. H. ^[2]

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1. Center for Condensed Matter Sciences, National Taiwan University, Taipei, 10617 Taiwan (China)
2. Department of Materials Science and Engineering, National Taiwan University, Taipei, 10617 Taiwan (China)

The spin injection effects from C-type antiferromagnetic Nd{sub 0.35}Sr{sub 0.65}MnO{sub 3} (NSMO) to superconductor YBa{sub 2}Cu{sub 3}O{sub 7−δ} (YBCO) are investigated via the measurement of temperature dependent resistivity with input current from 10{sup −2 }mA to 90 mA. The superconducting transition temperature (T{sub co}) of YBCO decreases with increasing current but at a higher rate with larger thickness of NSMO. Two spin states below T{sub co} 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.

• OSTI ID: 22410148
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROELECTRIC MATERIALS
ANTIFERROMAGNETISM
BARIUM OXIDES
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
HIGH-TC SUPERCONDUCTORS
LAYERS
MANGANATES
NEODYMIUM COMPOUNDS
SPIN
STRONTIUM COMPOUNDS
TEMPERATURE DEPENDENCE
TRANSITION TEMPERATURE
YTTRIUM OXIDES