Using the de Haas--van Alphen Effect to Map Out the Closed Three-Dimensional Fermi Surface of Natural Graphite

Using the de Haas–van Alphen Effect to Map Out the Closed Three-Dimensional Fermi Surface of Natural Graphite

J. M. Schneider, B. A. Piot, I. Sheikin, and D. K. Maude

Phys. Rev. Lett. 108, 117401 – Published 12 March 2012

Abstract

The Fermi surface of graphite has been mapped out using de Haas–van Alphen (dHvA) measurements at low temperature with in-situ rotation. For tilt angles $θ > 60 °$ between the magnetic field and the $c$ axis, the majority electron and hole dHvA periods no longer follow a $\cos (θ)$ behavior demonstrating that graphite has a three-dimensional closed Fermi surface. The Fermi surface of graphite is accurately described by highly elongated ellipsoids. A comparison with the calculated Fermi surface suggests that the Slonczewski-Weiss-McClure trigonal warping parameter $γ_{3}$ is significantly larger than previously thought.