The electrical transport in superconductors at nonzero frequencies is affected by the normal and superfiuid fractions, as well as moving vortices, resulting in intricate expressions for the complex resistivity. In MgB2, additional complications arise from the two-band nature of this material. We present an accurate study of microwave resistivity data measured in MgB2 thin films by means of the Corbino disk broadband technique between 2 and 20 GHz. We show that a two-fluid model applies well in a relatively large region of the H-T phase diagram. Excellent agreement is found between the derived superfluid parameters (superfluid density, upper critical field) and theoretical predictions. In the same H-T region we isolate and discuss the vortex...
The fundamental and third harmonics of the ac magnetic susceptibility have been studied on MgB2 bulk...
We report the influence of two-band superconductivity on the flux creep and the critical current den...
We report magnetic-field-dependent magnetization and microwave impedance measurements on a MgB2 supe...
The electrical transport in superconductors at nonzero frequencies is affected by the normal and sup...
We report swept frequency measurements (2–20 GHz) of the microwave resistivity in MgB2, in the prese...
At nonzero frequencies both the normal and superfluid fractions, as well as moving vortices, contrib...
We present here a wide experimental study of the microwave complex resistivity r(T,H), performed on ...
At nonzero frequencies both the normal and superfluid fractions, as well as moving vortices, contrib...
We present the multifrequency measurements of the surface resistance of spark-plasma-sintered MgB2 p...
Field-induced variations of the microwave surface resistance, Rs(H), have been investigated in high-...
The microwave response of ceramic MgB2 has been investigated as a function of temperature and extern...
Flux line dynamics have been investigated on MgB2 bulk superconductors obtained by reactive liquid i...
Jin BB, Dahm T, Lee S-IK, Klein N. Anomalous coherence peak in the microwave conductivity of MgB(2) ...
MgB2 has great potential for many applications, thanks to its relatively high critical temperature a...
We present a study of the frequency dependence of the vortex dynamics in a conventional superconduct...
The fundamental and third harmonics of the ac magnetic susceptibility have been studied on MgB2 bulk...
We report the influence of two-band superconductivity on the flux creep and the critical current den...
We report magnetic-field-dependent magnetization and microwave impedance measurements on a MgB2 supe...
The electrical transport in superconductors at nonzero frequencies is affected by the normal and sup...
We report swept frequency measurements (2–20 GHz) of the microwave resistivity in MgB2, in the prese...
At nonzero frequencies both the normal and superfluid fractions, as well as moving vortices, contrib...
We present here a wide experimental study of the microwave complex resistivity r(T,H), performed on ...
At nonzero frequencies both the normal and superfluid fractions, as well as moving vortices, contrib...
We present the multifrequency measurements of the surface resistance of spark-plasma-sintered MgB2 p...
Field-induced variations of the microwave surface resistance, Rs(H), have been investigated in high-...
The microwave response of ceramic MgB2 has been investigated as a function of temperature and extern...
Flux line dynamics have been investigated on MgB2 bulk superconductors obtained by reactive liquid i...
Jin BB, Dahm T, Lee S-IK, Klein N. Anomalous coherence peak in the microwave conductivity of MgB(2) ...
MgB2 has great potential for many applications, thanks to its relatively high critical temperature a...
We present a study of the frequency dependence of the vortex dynamics in a conventional superconduct...
The fundamental and third harmonics of the ac magnetic susceptibility have been studied on MgB2 bulk...
We report the influence of two-band superconductivity on the flux creep and the critical current den...
We report magnetic-field-dependent magnetization and microwave impedance measurements on a MgB2 supe...