3 papers
cond-mat.supr-con1999
Anomalous Low Temperature Behavior of Superconducting Nd(1.85)Ce(0.15)CuO(4-y)
L. Alff, S. Meyer, S. Kleefisch +5
We have measured the temperature dependence of the in-plane London penetration depth lambda(T) and the maximum Josephson current Ic(T) using bicrystal grain boundary Josephson junc…
cond-mat.supr-con1998
Andreev Bound States in High Temperature Superconductors
L. Alff, S. Kleefisch, U. Schoop +5
Andreev bound states (ABS) at the surface of superconductors are expected for any pair potential showing a sign change in different k-directions with their spectral weight dependin…
cond-mat.supr-con1998
Superconducting NdCeCuO Bicrystal Grain Boundary Josephson Junctions
S. Kleefisch, L. Alff, U. Schoop +4
We have studied the electric transport properties of symmetrical [001] tilt NdCeCuO bicrystal grain boundary Josephson junctions (GBJs) fabricated on SrTiO bicrystal substrates wit…