Transport properties of La2−xCexCuO4 thin films
✍ Scribed by H. Wu; L. Zhao; J. Yuan; L.X. Cao; B.Y. Zhu; X.G. Qiu; B.R. Zhao
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 236 KB
- Volume
- 460-462
- Category
- Article
- ISSN
- 0921-4534
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✦ Synopsis
The electron-doped La 2Àx Ce x CuO 4 (x = 0.06-0.20) thin films with two orientations, (1 0 0) and (1 0 3), were successfully grown and their transport properties were investigated for the first time. The temperature dependence of the in-plane resistivity q ab evolves from the semiconducting behavior for under-doped films to the metallic behavior for optimal-and over-doped ones, which reveals a two dimensional (2D) Fermi liquid nature. The c-axis resistivity q c shows non-metallic behavior except for heavily over-doped films. The anisotropy factor q c /q ab is found to vary depending on the temperature and doping concentration, and the largest anisotropy value 1500 is related to the optimal doping (x = 0.10) at which the highest T C is obtained.
📜 SIMILAR VOLUMES
The normal-state optical reflectivity and absorption spectra of the Nd,\_,Ce,CuO, system with various Ce concentrations from x= 0 to 0.18 have been measured for the first time using highly oriented thin films with c-axis normal to ( 100) SrTi03 substrates. The absorption spectra of x= 0 indicated th
The electrical resistivity p(T,H) vs. magnetic fields H up to 12 T parallel to the c-axis has been measured as a function of temperature T above the superconducting critical temperature Tc to study the effect of thermodynamic fluctuations on the dectrieal conductivity o(T,H)of Nd2.xCexCuO4 (x~ 0.15)