High magnetic field induced charge density waves and sign reversal of the Hall coefficient in graphite

Details High magnetic field induced charge density waves and sign reversal of the Hall coefficient in graphite High magnetic field induced charge density waves and sign reversal of the Hall coefficient in graphite

2010-06-06

arxiv.org/abs/1006.1085v1

Journal of Physics: Condensed Matter 2010

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1088/0953-8984/22/43/436004

We report on the investigation of magnetic field induced charge density wave and Hall coefficient sign reversal in a quasi-two dimensional electronic system of highly oriented pyrolytic graphite under very strong magnetic field. The change of Hall sign coefficient from negative to positive occurs at low temperature and high magnetic field just after the charge density wave transition, suggesting the role of hole-like quasi-particles in this effect. Angular dependent measurements show that the charge density wave transition and Hall sign reversal fields follow the magnetic field component along the c-axis of graphite.

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