Bhatt, R. N. ; Ramakrishnan, T. V. (1983) Conductivity scale in disordered systems Physical Review B: Condensed Matter and Materials Physics, 28 (10). pp. 6091-6094. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v28/i10/p6091_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.28.6091
Abstract
A reanalysis of the correction to the Boltzmann conductivity due to maximally crossed graphs for degenerate bands explains why the conductivity scale in many-valley semiconductors is an order of magnitude higher than Mott's "minimum metallic conductivity." With the use of a reasonable assumption for the Boltzmann mean free path, the lowest-order perturbation theory is seen to give a remarkably good, semiquantitative, description of the conductivity variation in both uncompensated doped semiconductors and amorphous alloys.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 40806 |
Deposited On: | 25 May 2011 11:03 |
Last Modified: | 25 May 2011 11:03 |
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