131 citations · 242 across the 6 of their papers we have counts for
6 papers
Direct observation of the thickness distribution of ultra thin AlOx barrier in Al/AlOx/Al Josephson junctions
L. J. Zeng, S. Nik, T. Greibe +3
We show that less than 10% of the barrier area dominates the electron tunneling in state-of-art Al/AlOx/Al Josephson junctions. They have been studied by transmission electron micr…
Are pinholes the cause of excess current in superconducting tunnel junctions? A study of Andreev current in highly resistive junctions
Tine Greibe, Markku P. V. Stenberg, C. M. Wilson +3
In highly resistive superconducting tunnel junctions, excess subgap current is usually observed and is often attributed to microscopic "pinholes" in the tunnel barrier. We have stu…
Superconducting Density of States from the Magnetic Penetration Depth of Electron-Doped Cuprates La_{2-x}Ce_xCuO_{4-y} and Pr_{2-x}Ce_xCuO_{4-y}
John A. Skint, Mun-Seog Kim, Thomas R. Lemberger +2
From measurements of the magnetic penetration depth, , from 1.6 K to in films of electron-doped cuprates LaCeCuO and PrCeCuO we…
Phase control of La2CuO4 in thin-film synthesis
A. Tsukada, T. Greibe, M. Naito
The lanthanum copper oxide, La2CuO4, which is an end member of the prototype high-Tc superconductors (La,Sr)2CuO4 and (La,Ba)2CuO4, crystallizes in the "K2NiF4" structure in high-t…
Phase control in La-214 epitaxial thin films
M. Naito, A. Tsukada, T. Greibe +1
The lanthanide (Ln) copper oxides of the general chemical formula Ln2CuO4 take two different crystal structures: K2NiF4(T) and Nd2CuO4(T'). La2CuO4 takes the T structure by high-te…
Evidence for a Transition in the Pairing Symmetry of the Electron-Doped Cuprates La_{2-x}Ce_xCuO_{4-y} and Pr_{2-x}Ce_xCuO_{4-y}
John A. Skinta, Mun-Seog Kim, Thomas R. Lemberger +2
We present measurements of the magnetic penetration depth, λ^{-2}(T), in Pr_{2-x}Ce_{x}CuO_{4-y} and La_{2-x}Ce_{x}CuO_{4-y} films at three Ce doping levels, x, near optimal. Optim…