Anomalous coherence peak in the microwave conductivity of MgB2 thin film at 7.2 GHz

We present here the temperature dependence of the real part of the microwave conductivity of MgB2 thin film measured at 7.2 GHz. A pronounced peak occurs at a temperature around 0.6 times the critical temperature, same position as it did at 17.9 GHz [Jin et. al., Phys. Rev. Lett. 91 (2003) 127006]....

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Veröffentlicht in:	Physica. C, Superconductivity Superconductivity, 2008-06, Vol.468 (11-12), p.861-864
Hauptverfasser:	JIN, B. B, DAHM, T, LEE, Sung-Ik, KLEIN, N
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology High-tc films Physics Properties of type I and type II superconductors Response to electromagnetic fields (nuclear magnetic resonance, surface impedance, etc.) Superconducting films and low-dimensional structures Superconductivity
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