TY - JOUR
T1 - Spatial variations of the superconductor gap structure in MgB2/Al composite
AU - Sharoni, A.
AU - Millo, O.
AU - Leitus, G.
AU - Reich, S.
PY - 2001/6/4
Y1 - 2001/6/4
N2 - Composites consisting of MgB2 and A1, 11% by volume, undergo a transition-superconductivity onset at TC = 38 K, close to the value reported for pure MgB2. The transition appears to have broadened, as determined by both magnetic and transport measurements, possibly due to the proximity effect and disorder. Spatially resolved tunnelling spectroscopy at 4.2 K shows a distribution of gap structures, from Bardeen-Cooper-Schrieffer-like spectra with 2Δ/kBTC = 3.2 to spectra that are typical for proximity superconductors.
AB - Composites consisting of MgB2 and A1, 11% by volume, undergo a transition-superconductivity onset at TC = 38 K, close to the value reported for pure MgB2. The transition appears to have broadened, as determined by both magnetic and transport measurements, possibly due to the proximity effect and disorder. Spatially resolved tunnelling spectroscopy at 4.2 K shows a distribution of gap structures, from Bardeen-Cooper-Schrieffer-like spectra with 2Δ/kBTC = 3.2 to spectra that are typical for proximity superconductors.
UR - http://www.scopus.com/inward/record.url?scp=0035805883&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/13/22/109
DO - 10.1088/0953-8984/13/22/109
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AN - SCOPUS:0035805883
SN - 0953-8984
VL - 13
SP - L503-L508
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 22
ER -