Galvanomagnetic effects in graphite-I. Low field data and the densities of free carriers

R. O. Dillon; I. L. Spain; J. A. Woollam; W. H. Lowrey

doi:10.1016/0022-3697(78)90104-X

Galvanomagnetic effects in graphite-I. Low field data and the densities of free carriers

R. O. Dillon, I. L. Spain, J. A. Woollam, W. H. Lowrey

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Abstract

Measurements of the galvanomagnetic properties of highly-oriented pyrolytic graphite have been made in the field range 0.001-1.5 T at 298, 77.4 and 4.2 K, with selected measurements to higher fields and ∼1.2K. Specimens of graphite were chosen with properties approximating those of purified natural crystals (single crystals) of graphite. Attention is drawn to differences in the properties of these materials. The data are analyzed with particular emphasis on the density of free carriers and its dependence on temperature, since earlier work had shown that experimental results were appreciably different from theoretical predictions.

Original language	English (US)
Pages (from-to)	907-922
Number of pages	16
Journal	Journal of Physics and Chemistry of Solids
Volume	39
Issue number	9
DOIs	https://doi.org/10.1016/0022-3697(78)90104-X
State	Published - 1978
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/0022-3697(78)90104-X

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title = "Galvanomagnetic effects in graphite-I. Low field data and the densities of free carriers",

abstract = "Measurements of the galvanomagnetic properties of highly-oriented pyrolytic graphite have been made in the field range 0.001-1.5 T at 298, 77.4 and 4.2 K, with selected measurements to higher fields and ∼1.2K. Specimens of graphite were chosen with properties approximating those of purified natural crystals (single crystals) of graphite. Attention is drawn to differences in the properties of these materials. The data are analyzed with particular emphasis on the density of free carriers and its dependence on temperature, since earlier work had shown that experimental results were appreciably different from theoretical predictions.",

author = "Dillon, {R. O.} and Spain, {I. L.} and Woollam, {J. A.} and Lowrey, {W. H.}",

note = "Funding Information: Acknowledgemenrs-The authors wish to thank the staff at NRL for their help in these measurements and to Mr. C. Todd for computing data for the ellipsoidal band model. The computer facility at NRL was used for calculations of the SW model. We gratefully acknowledge the assistance of Prof. J. W. McClure in providing us with the calculations of (N + P) and of Dr. A. W. Moore who provided the graphite specimens. A grant from the USAEC to The University of Maryland is also acknowledged with thanks.",

year = "1978",

doi = "10.1016/0022-3697(78)90104-X",

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pages = "907--922",

journal = "Journal of Physics and Chemistry of Solids",

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T1 - Galvanomagnetic effects in graphite-I. Low field data and the densities of free carriers

AU - Dillon, R. O.

AU - Spain, I. L.

AU - Woollam, J. A.

AU - Lowrey, W. H.

N1 - Funding Information: Acknowledgemenrs-The authors wish to thank the staff at NRL for their help in these measurements and to Mr. C. Todd for computing data for the ellipsoidal band model. The computer facility at NRL was used for calculations of the SW model. We gratefully acknowledge the assistance of Prof. J. W. McClure in providing us with the calculations of (N + P) and of Dr. A. W. Moore who provided the graphite specimens. A grant from the USAEC to The University of Maryland is also acknowledged with thanks.

PY - 1978

Y1 - 1978

N2 - Measurements of the galvanomagnetic properties of highly-oriented pyrolytic graphite have been made in the field range 0.001-1.5 T at 298, 77.4 and 4.2 K, with selected measurements to higher fields and ∼1.2K. Specimens of graphite were chosen with properties approximating those of purified natural crystals (single crystals) of graphite. Attention is drawn to differences in the properties of these materials. The data are analyzed with particular emphasis on the density of free carriers and its dependence on temperature, since earlier work had shown that experimental results were appreciably different from theoretical predictions.

AB - Measurements of the galvanomagnetic properties of highly-oriented pyrolytic graphite have been made in the field range 0.001-1.5 T at 298, 77.4 and 4.2 K, with selected measurements to higher fields and ∼1.2K. Specimens of graphite were chosen with properties approximating those of purified natural crystals (single crystals) of graphite. Attention is drawn to differences in the properties of these materials. The data are analyzed with particular emphasis on the density of free carriers and its dependence on temperature, since earlier work had shown that experimental results were appreciably different from theoretical predictions.

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ER -

Galvanomagnetic effects in graphite-I. Low field data and the densities of free carriers

Abstract

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