Two-Gap Superconductivity inBa1−xKxFe2As2: A Complementary Study of the Magnetic Penetration Depth by Muon-Spin Rotation and Angle-Resolved Photoemission
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منابع مشابه
Muon-spin rotation measurements of the magnetic penetration depth in the iron-based superconductor Ba1xRbxFe2As2
Measurements of the magnetic penetration depth � in the Fe-based superconductor Ba1−xRbxFe2As2 (x=0.3, 0.35, 0.4) were carried out using the muon-spin rotation (�SR) technique. The temperature dependence of � is well described by a two-gap s + s-wave scenario with a small gap Δ1 � 1–3 meV and a large gap Δ2�7–9 meV. By combining the present data with those previously obtained for RbFe2As2 a dec...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2009
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.102.187005