Abstract
The in-plane magnetoresistance of a high-quality single crystal of La1.925Sr0.075CuO4+δ has been measured in both the high-symmetry transverse geometry and in the longitudinal geometry. In both orientations, the magnetoresistance is positive and shows conventional weak-field behavior. The measured longitudinal magnetoresistance, however, is found to be almost an order of magnitude smaller than the measured transverse magnetoresistance. A semiphenomenological theory based on anisotropic scattering from hypothesized hole-pocket Fermi surfaces is introduced, which can account for the latter positive effect, as well as for known Hall-effect measurements. We predict that, in the limit corresponding to perfectly coherent in-plane hole motion along (π,π), there should be no saturation effect in the high-symmetry transverse magnetoresistance.
Original language | English (US) |
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Pages (from-to) | 9097-9102 |
Number of pages | 6 |
Journal | Physical Review B |
Volume | 49 |
Issue number | 13 |
DOIs | |
State | Published - 1994 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics