New data and analysis show that the Hall conductivity σxy of cuprate superconductors consists of two additive contributions: a quasiparticle excitation term and a vortex motion term. Competition between the two leads to a sign reversal in YBCO but not in LSCO, where they both have the same sign.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering