๐”– Bobbio Scriptorium
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Magnetoresistance of graphite fibers

โœ Scribed by I. Rahim; K. Sugihara; M.S. Dresselhaus; J. Heremans

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
715 KB
Volume
24
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

experimental study to clarify the theoretical basis of the negative magnetoresistance in pre-graphitic carbons is reported. The experiments arc carried out in pre-graphitic carbon fibers where the crystalline order is controlled by the annealing temperature. Bright's theoretical prediction that the negative magnetoresistance at low magnetic fields (H < l.OT) is related to the degree of two-dimensional in-plane ordering is used, At higher magnetic fields the departures from the Bright theory are explained in terms of a new mechanism due to the field dependence of impurity scattering. With this new mechanism. negative magnetoresistance behavior is simulated for fields up to 3T.

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