Journal
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
Volume 17, Issue 11, Pages 1361-1364Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-2048/17/11/020
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Electron-doped La2-xCexCuO4 (LCCO) thin films were successfully prepared on (100) SrTiO3 substrates by the dc rnagnetron sputtering method. The optimal-doped films show a highly c-axis oriented single T'-type structure, and the zero resistance temperature T-C0 is 25 K. In the normal state, the nearly quadratic temperature dependence of the resistivity was found and attributed to the Landau-Fermi liquid behaviour due to electron-electron scattering. At the same time, the negative sign of the Hall coefficient for such films well above T-C obviously confirms the electron-type nature. The optimal conditions for the growth of single-phase T'-type LCCO thin films are also discussed in detail.
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