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تسجيل مستخدم جديدClassification of the Super-conducting order parameters under the point group symmetry for a multi-band system: application to LaOFeAs
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All the possible super-conducting order parameters for the LaOFeAs system are classified by their transformation under the complete crystal symmetry. The general forms of the super-conducting gap functions for each class are discussed. We find that the gap functions in such a multi-band system belong to three types, full gap, nodal type and finite {}``Fermi arc type. Possible physical consequences caused by different types of gap functions are also discussed.
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