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8 papers · 2 filters
Far-infrared and submillimeter-wave conductivity in electron-doped cuprate La_{2-x}Ce_xCuO_4
A. Pimenov, A. V. Pronin, A. Loidl +2
We performed far-infrared and submillimeter-wave conductivity experiments in the electron-doped cuprate La_{2-x}Ce_xCuO_4 with x = 0.081 (underdoped regime, T_c = 25 K). The onset…
In-situ growth of superconducting MgB2 thin films by molecular beam epitaxy
K Ueda, M. Naito
The in-situ growth of superconducting MgB2 thin films was examined from various perspectives. The paper discusses (1) growth temperature, (2) the effect of excess Mg, (3) the effec…
Tunnel junctions on as-grown superconducting MgB2 thin films
K. Ueda, M. Naito
We demonstrate that good superconductor/insulator/normal-metal tunnel junctions can be fabricated on as-grown superconducting MgB2 thin films. The as-grown films were prepared by c…
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…
On the peak in the far-infrared conductivity of strongly anisotropic cuprates
A. Pimenov, A. V. Pronin, A. Loidl +2
We investigate the far-infrared and submillimeter-wave conductivity of electron-doped La_(2-x)Ce_xCuO_4 tilted 1 degree off from the ab-plane. The effective conductivity measured f…
Doping Dependence of Anisotropic Resistivities in Trilayered Superconductor Bi2Sr2Ca2Cu3O10+delta (Bi-2223)
Takenori Fujii, Ichiro Terasaki, Takao Watanabe +1
The doping dependence of the themopower, in-plane resistivity rho_ab(T), out-of-plane resistivity rho_c(T), and susceptibility has been systematically measured for high-quality sin…