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19 April 2024

» arxiv » 1111.2674

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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 ; D. K. Maude ;
Date:	11 Nov 2011
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 $ heta>60^{circ}$ between the magnetic field and the c-axis, the majority electron and hole dHvA periods no longer follow the $cos( heta)$ behavior demonstrating that graphite has a 3 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 SWM trigonal warping parameter $gamma_3$ is significantly larger than previously thought.
Source:	arXiv, 1111.2674
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