Diamagnetism of graphite
M. P. SharmaDepartment of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403L. G. JohnsonDepartment of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403J. W. McClureDepartment of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403
1974en
ABI
Abstract
A calculation of the diamagnetism of graphite including the effects of trigonal warping of the Fermi surfaces has been performed using Fukuyama's formulation of the diamagnetism of Bloch electrons. Inclusion of the trigonal warping increases the diamagnetism by about 13% at low temperatures and reduces it by about 1% at high temperatures. A paramagnetic constant is used to represent all effects not associated with the free carriers. The experimental diamagnetism can be fitted quite well using values of the energy band parameters which give agreement with the de Haas-van Alphen effect, optical absorption, and magnetoreflection experiments.
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