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4 papers
Transient Infrared Photoreflectance Study of Superconducting MgB2: Evidence for Multiple Gaps and Interband Scattering
R. P. S. M. Lobo, J. J. Tu, Eun-Mi Choi +4
We studied the far-infrared reflectance of superconducting MgB2 in and out of equilibrium using pulsed synchrotron radiation. The equilibrium data can be described by a single ener…
Superconducting gap and electron-phonon interaction in MgB thin film studied by point contacts
N. L. Bobrov, P. N. Chubov, Yu. G. Naidyuk +6
The superconducting order parameter and electron-phonon interaction (EPI) in a MgB c-axis oriented thin film are investigated by point contacts (PCs). Two superconducting gap…
Epitaxial MgB2 superconducting thin films with a transition temperature of 39 Kelvin
W. N. Kang, Hyeong-Jin Kim, Eun-Mi Choi +2
We report the growth of high-quality epitaxial MgB2 thin films on (1102) Al2O3 and (001) SrTiO3 substrates by using a pulsed laser deposition technique. The thin films grown on Al2…
Fluctuation Magnetoconductance in MgB2
W. N. Kang, Kijoon H. P. Kim, Hyeong-Jin Kim +8
We report fluctuation magnetoconductance in a MgB2 superconductor prepared under a high pressure of 3 GPa. This excess magnetoconductance, , follows the three-dimensional sc…