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Field induced and spontaneous sub-gap in [110] and [100] oriented YBCO films: indication for a dx2−y2 + idxy order parameter

Deutscher, G. and Dagan, Y. and Kohen, A. and Krupke, Ralph (2000):
Field induced and spontaneous sub-gap in [110] and [100] oriented YBCO films: indication for a dx2−y2 + idxy order parameter.
In: Physica C: Superconductivity, 341-48 (Part 3), pp. 1629-1632, ISSN 09214534,
[Online-Edition: http://dx.doi.org/10.1016/S0921-4534(00)01488-X],
[Article]

Abstract

Tunneling experiments on [110] and [100] oriented YBCO films show that a sub-gap can be induced either by applying a magnetic field parallel to the in-plane c-axis, or by overdoping it with partial Ca substitution for Y. This time reversal symmetry breaking is best described by an id component that is both doping and field dependent. It appears that this component appears in zero field above a well defined doping level. This suggests the existence of a quantum critical point.

Item Type: Article
Erschienen: 2000
Creators: Deutscher, G. and Dagan, Y. and Kohen, A. and Krupke, Ralph
Title: Field induced and spontaneous sub-gap in [110] and [100] oriented YBCO films: indication for a dx2−y2 + idxy order parameter
Language: English
Abstract:

Tunneling experiments on [110] and [100] oriented YBCO films show that a sub-gap can be induced either by applying a magnetic field parallel to the in-plane c-axis, or by overdoping it with partial Ca substitution for Y. This time reversal symmetry breaking is best described by an id component that is both doping and field dependent. It appears that this component appears in zero field above a well defined doping level. This suggests the existence of a quantum critical point.

Journal or Publication Title: Physica C: Superconductivity
Volume: 341-48
Number: Part 3
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Fachgebiet Molekulare Nanostrukturen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 08 Nov 2011 14:07
Official URL: http://dx.doi.org/10.1016/S0921-4534(00)01488-X
Identification Number: doi:10.1016/S0921-4534(00)01488-X
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