期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 78, 期 11, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.78.114702
关键词
Fermi surface; interlayer magnetoresistance; Fe-pnictide
资金
- Ministry of Education, Culture. Sports, Science and Technology of Japan (MEXT)
- Global COE Program The Next Generation of Physics, Spun from Universality and Emergence
- Yukawa International Program for Quark-Hadron Sciences
In layered single band systems, the interlayer conductivity depends on the orientation of the in-plane magnetic field and takes maximum values when the magnetic field is perpendicular to flat regions of the Fermi surface. Extending this known results to multi-band systems, we propose an experiment to extract information about their Fermi surface topology. We discuss application of the formula to a FeAs-based Superconductor, LaFeAsO1-xFx. We show that the magnetically ordered state in the parent compound is clearly distinguished from the paramagnetic state by the oscillation period in the interlayer conductivity. We demonstrate that evolution of the Fermi surface topology by changing the doping concentration is reflected to the interlayer conductivity oscillation patterns.
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