Electronic and elastic properties of edge dislocations in Si

Update Item Information
Publication Type Journal Article
School or College College of Engineering
Department Materials Science & Engineering
Creator Liu, Feng
Other Author Mostoller, Mark; Milman, V.; Chisholm, M. F.; Kaplan, Theodore
Title Electronic and elastic properties of edge dislocations in Si
Date 1995-06
Description Ab initio, tight-binding, and classical calculations have been done for (a/2)( 110) edge dislocation dipoles in Si at separations of 7.5-22.9 A in unit cells comprising 32-288 atoms. These calculations show states associated with the cores relatively deep in the band gap (~ 0.2 eV) despite the absence of dangling bonds. The shifts in the electronic states depend significantly on separation d and are correlated with a concentration of strain in the cores as the dislocations become more isolated. The strain energies exhibit a logarithmic dependence on d consistent with linear elasticity for all system sizes.
Type Text
Publisher American Physical Society
Journal Title Physical Review B
Volume 51
Issue 23
First Page 17192
Last Page 17195
DOI 10.1103/PhysRevB.51.17192
citatation_issn 0163-1829
Subject Edge dislocations
Subject LCSH Semiconductors -- Defects; Silicon
Language eng
Bibliographic Citation Liu, F., Mostoller, M., Milman, V., Chisholm, M. F., & Kaplan,T. (1995). Electronic and elastic properties of edge dislocations in Si. Physical Review B, 51(23), 17192-5.
Rights Management (c) American Physical Society http://dx.doi.org/10.1103/PhysRevB.51.17192
Format Medium application/pdf
Format Extent 344,919 bytes
Identifier ir-main,12220
ARK ark:/87278/s63b6hnw
Setname ir_uspace
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Reference URL https://collections.lib.utah.edu/ark:/87278/s63b6hnw