Die u:cris Detailansicht:
In-plane and out-of-plane magnetoresistance in Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8+x</sub> with various carrier densities
- Autor(en)
- G. Heine, W. Lang, X. L. Wang, S. X. Dou
- Abstrakt
The in-plane and out-of-plane magnetoresistance of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+x/, single crystals was investigated in magnetic fields of 12 T, oriented parallel to the c axes. Crystals with different carrier concentrations, corresponding to the underdoped, optimally doped, and overdoped region of the phase diagram of high-temperature superconductors, were prepared by variation of the oxygen content. Above the critical temperature, the magnetoresistance is positive for in-plane and negative for out-of-plane currents in all samples. With recent theories for superconducting order-parameter fluctuations, the in-plane magnetoresistance can be described well for all samples. Only the out-of-plane magnetoresistance of the underdoped crystal shows distinct deviations from the theoretical predictions and appears to be influenced by the `pseudo-gap'.
- Organisation(en)
- Elektronische Materialeigenschaften
- Journal
- Journal of Low Temperature Physics
- Band
- 117
- Seiten
- 1253-1257
- Anzahl der Seiten
- 5
- ISSN
- 0022-2291
- DOI
- https://doi.org/10.1023/A:1022540221637
- Publikationsdatum
- 1999
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103018 Materialphysik
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/619de432-443d-4b62-b4dd-2ac06ca965d4