Mobility theory of intermediate-bandwidth carriers in organic crystals: Scattering by acoustic and optical phonons

Physical Review B - Condensed Matter and Materials Physics

Volumn 67, Issue 4, 2003, Pages

  Giuggioli, L ^a   Kenkre, V M ^a   Andersen, John D ^b  

^a UNIVERSITY OF NEW MEXICO   (United States)

^b ROCHESTER INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ORGANIC COMPOUND;

ACOUSTICS; ARTICLE; CALCULATION; CRYSTAL STRUCTURE; MATHEMATICAL ANALYSIS; OPTICS; STRUCTURE ANALYSIS; TEMPERATURE DEPENDENCE; THEORY; X RAY ANALYSIS;

EID: 0037438407     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.67.045110     Document Type: Article

References (25)

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8. We neglect umklapp processes for simplicity.
9. If regimes of very low B values (such that (formula presented) are attained, then Umklapp processes as well as other second-order processes become important.
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14. The high-temperature behavior of (formula presented) appears from our numerical computations to be of the form (formula presented)
15. Any other optical phonon scattering event would move a carrier in a region where (formula presented) and therefore is forbidden.
16. For the case depicted in Figs. 22 and 33 we have computed the mean free path and found it to be larger than a lattice constant. However, even if extraneous scattering does not mask the predicted dip and rise, the analysis might be inapplicable to a specific system if the mean free path is of the order of, or falls below, the lattice constant. The entire Boltzmann analysis in k space, and, consequently, the predicted effect, would then be inapplicable.
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18. The turnover in (formula presented) reported in pentacene at higher temperature (about 400 K) requires a combination of a polaronic analysis with the present band treatment as outlined in Ref. 7.
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