Applied Physics Letters, volume 103, issue 15, pages 152602
Suppression of superconductivity in Nb by IrMn in IrMn/Nb bilayers
Publication type: Journal Article
Publication date: 2013-10-07
Journal:
Applied Physics Letters
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor: 4
ISSN: 00036951, 10773118
Physics and Astronomy (miscellaneous)
Abstract
Effect of antiferromagnet on superconductivity has been investigated in IrMn/Nb bilayers. Significant suppression of both transition temperature (Tc) and lower critical field (Hc1) of Nb is found in IrMn/Nb bilayers as compared to a single layer Nb of same thickness; the suppression effect is even stronger than that of a ferromagnet in NiFe/Nb bilayers. The addition of an insulating MgO layer at the IrMn-Nb interface nearly restores Tc to that of the single layer Nb, but Hc1 still remains suppressed. These results suggest that, in addition to proximity effect and magnetic impurity scattering, magnetostatic interaction also plays a role in suppressing superconductivity of Nb in IrMn/Nb bilayers. In addition to reduced Tc and Hc1, the IrMn layer also induces broadening in the transition temperature of Nb, which can be accounted for by a finite distribution of stray field from IrMn.
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Wu B. L. et al. Suppression of superconductivity in Nb by IrMn in IrMn/Nb bilayers // Applied Physics Letters. 2013. Vol. 103. No. 15. p. 152602.
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Wu B. L., Yang Y., Guo Z., Wu Y. H., Qiu J. Suppression of superconductivity in Nb by IrMn in IrMn/Nb bilayers // Applied Physics Letters. 2013. Vol. 103. No. 15. p. 152602.
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TY - JOUR
DO - 10.1063/1.4824891
UR - https://doi.org/10.1063/1.4824891
TI - Suppression of superconductivity in Nb by IrMn in IrMn/Nb bilayers
T2 - Applied Physics Letters
AU - Wu, B. L.
AU - Yang, Y.-m.
AU - Guo, Z.B
AU - Wu, Y. H.
AU - Qiu, J.J
PY - 2013
DA - 2013/10/07
PB - American Institute of Physics (AIP)
SP - 152602
IS - 15
VL - 103
SN - 0003-6951
SN - 1077-3118
ER -
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@article{2013_Wu,
author = {B. L. Wu and Y.-m. Yang and Z.B Guo and Y. H. Wu and J.J Qiu},
title = {Suppression of superconductivity in Nb by IrMn in IrMn/Nb bilayers},
journal = {Applied Physics Letters},
year = {2013},
volume = {103},
publisher = {American Institute of Physics (AIP)},
month = {oct},
url = {https://doi.org/10.1063/1.4824891},
number = {15},
pages = {152602},
doi = {10.1063/1.4824891}
}
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Wu, B. L., et al. “Suppression of superconductivity in Nb by IrMn in IrMn/Nb bilayers.” Applied Physics Letters, vol. 103, no. 15, Oct. 2013, p. 152602. https://doi.org/10.1063/1.4824891.