Thermopower and resistivity for Nd1.85Ce0.15CuO4−δ single crystals: Existence of a holelike band
✍ Scribed by L. Cheng; H.S. Yang; C.H. Sun; H.X. Gao; J.B. Wang; X.D. Chen
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 252 KB
- Volume
- 468
- Category
- Article
- ISSN
- 0921-4534
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The anisotropic properties of an optimally doped Nd 1.85 Ce 0.15 CuO 4Àd single crystal have been studied both below and above the critical temperature T c via the resistivity measurement in magnetic field H up to 12 T. By scaling the conductivity fluctuation around the superconducting transition, t
## Magnetoresistivity measurements above r, ( zz 14 K) on a superconducting Sml.g5Ce,,,5Cu0., single crystal have been performed. In spite of the cerium doping, the low-temperature normal state Hall coefftcient is found to be positive, whereas at high temperature (T> 80 K) it becomes negative. The