Y. Tokura, T. Arima, et al.
Nature
New measurements are reported on three La-Ba (and La-Sr) copper-oxide compounds, including one new compound. These materials have metallic conductivities, comparable to those of the high-Tc copper oxides in the normal state, but they are not superconducting down to 5 K. Their magnetic susceptibility and structural features are also similar. These data provide a new challenge and test for the numerous theories of high Tc to account also for its absence in these three closely related materials. © 1988 The American Physical Society.
Y. Tokura, T. Arima, et al.
Nature
T. Katsufuji, Y. Okimoto, et al.
Physical Review B
T.C. Huang, A. Nazzal, et al.
Powder Diffraction
A. Castro, P. Millán, et al.
Solid State Ionics