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Title: 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

Abstract

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.

Authors:
 [1];  [2];  [1];  [3]
  1. Center for Condensed Matter Sciences, National Taiwan University, Taipei, 10617 Taiwan (China)
  2. (China)
  3. Department of Materials Science and Engineering, National Taiwan University, Taipei, 10617 Taiwan (China)
Publication Date:
OSTI Identifier:
22410148
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Cheng, S. L., Department of Materials Science and Engineering, National Taiwan University, Taipei, 10617 Taiwan, Lin, J. G., E-mail: jglin@ntu.edu.tw, and Chuang, T. H. 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. United States: N. p., 2015. Web. doi:10.1063/1.4914534.
Cheng, S. L., Department of Materials Science and Engineering, National Taiwan University, Taipei, 10617 Taiwan, Lin, J. G., E-mail: jglin@ntu.edu.tw, & Chuang, T. H. 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. United States. doi:10.1063/1.4914534.
Cheng, S. L., Department of Materials Science and Engineering, National Taiwan University, Taipei, 10617 Taiwan, Lin, J. G., E-mail: jglin@ntu.edu.tw, and Chuang, T. H. Thu . "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". United States. doi:10.1063/1.4914534.
@article{osti_22410148,
title = {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},
author = {Cheng, S. L. and Department of Materials Science and Engineering, National Taiwan University, Taipei, 10617 Taiwan and Lin, J. G., E-mail: jglin@ntu.edu.tw and Chuang, T. H.},
abstractNote = {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.},
doi = {10.1063/1.4914534},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}