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Media type:
E-Article
Title:
INTERPRETATION OF HALL AND PHOTO-HALL EFFECTS IN INHOMOGENEOUS MATERIALS
Contributor:
Bube, Richard H.
imprint:
AIP Publishing, 1968
Published in:Applied Physics Letters
Language:
English
DOI:
10.1063/1.1652542
ISSN:
0003-6951;
1077-3118
Origination:
Footnote:
Description:
<jats:p>Hall and photo-Hall effects have frequently been used to distinguish between a ``numbers'' mechanism (assumed if Δn ≠ 0 and Δμ = 0), and a ``barier'' mechanism (assumed if Δn = 0 and Δμ ≠ 0) for photoconductivity in possibly inhomogeneous materials. Consideration of a simple model for an inhomogeneous material shows that a wide variety of effects can be obtained in a material with only resistivity variations and without p-n junction barriers. In particular it may be shown that in such a model without barriers, either Δn ≠ 0 and Δμ = 0, or Δn = 0 and Δμ ≠ 0, may be obtained experimentally, depending only on the resistivity ratio between different portions of the material.</jats:p>