Phase-sensitive order parameter symmetry test experiments utilizing Nd2-xCexCuO4-y/Nb zigzag junctions

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Ariando and Darminto, D. and Smilde, H.-J.H. and Leca, V. and Blank, D.H.A. and Rogalla, H. and Hilgenkamp, H. (2005) Phase-sensitive order parameter symmetry test experiments utilizing Nd2-xCexCuO4-y/Nb zigzag junctions. Physical Review Letters, 94 (16). p. 167001. ISSN 0031-9007

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Abstract:Phase-sensitive order parameter symmetry test experiments are presented on the electron-doped high-Tc cuprate Nd2-xCexCuO4-y. These experiments have been conducted using zigzag-shaped thin film Josephson structures, in which the Nd2-xCexCuO4-y is connected to the low-Tc superconductor Nb via an Au barrier layer. For the optimally doped as well as for the overdoped Nd2-xCexCuO4-y, a clear predominant dx2-y2-wave behavior is observed at T=4.2 K. Both compounds were also investigated at T=1.6 K, presenting no indications for a change to a predominant s-wave symmetry with decreasing temperature.
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Copyright:© 2005 The American Physical Society
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/55101
Official URL:http://dx.doi.org/10.1103/PhysRevLett.94.167001
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Metis ID: 230129