A high-magnetic-field-induced density-wave state in graphite.

Whilst the realization of graphene, probably one of the best two-dimensional carrier systems to study, has attracted much research interest recently, graphite, which may be regarded as multi-layered graphene, has also been known to exhibit very interesting phenomena at high magnetic fields and low temperatures. The electron-hole system in the compensated semimetal graphite undergoes a magnetic-field-induced electronic phase transition and successive transitions, including a reentrant transition back to the normal phase, at higher magnetic fields. In this article, we review the physics of the high-magnetic-field phase of graphite and elaborate on our studies on this subject using pulsed high magnetic fields.