MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES
The generation mechanisms of misfit dislocations from pre-existing dissociated threading dislocations in lattice-mismatched heterostructures are considered theoretically. Using elasticity theory, the corresponding critical thicknesses in anisotropic media are derived. The fact that the critical thic...
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| Formato: | Conference item |
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1995
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| _version_ | 1826285569242562560 |
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| author | Zou, J Cockayne, D |
| author_facet | Zou, J Cockayne, D |
| author_sort | Zou, J |
| collection | OXFORD |
| description | The generation mechanisms of misfit dislocations from pre-existing dissociated threading dislocations in lattice-mismatched heterostructures are considered theoretically. Using elasticity theory, the corresponding critical thicknesses in anisotropic media are derived. The fact that the critical thickness derived from a dissociated threading dislocation is less than that from an undissociated threading dislocation, along with the experimental evidence, suggests that the model of misfit dislocation generation by dissociated threading dislocations is more likely. Since the gliding geometries of misfit dislocations depend upon which partial is the leading partial, and upon the critical thicknesses of each partial, all possible cares are considered. |
| first_indexed | 2024-03-07T01:30:48Z |
| format | Conference item |
| id | oxford-uuid:93870e43-8505-435a-9acb-b9d0aa90ce3d |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:30:48Z |
| publishDate | 1995 |
| record_format | dspace |
| spelling | oxford-uuid:93870e43-8505-435a-9acb-b9d0aa90ce3d2022-03-26T23:33:00ZMISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURESConference itemhttp://purl.org/coar/resource_type/c_5794uuid:93870e43-8505-435a-9acb-b9d0aa90ce3dSymplectic Elements at Oxford1995Zou, JCockayne, DThe generation mechanisms of misfit dislocations from pre-existing dissociated threading dislocations in lattice-mismatched heterostructures are considered theoretically. Using elasticity theory, the corresponding critical thicknesses in anisotropic media are derived. The fact that the critical thickness derived from a dissociated threading dislocation is less than that from an undissociated threading dislocation, along with the experimental evidence, suggests that the model of misfit dislocation generation by dissociated threading dislocations is more likely. Since the gliding geometries of misfit dislocations depend upon which partial is the leading partial, and upon the critical thicknesses of each partial, all possible cares are considered. |
| spellingShingle | Zou, J Cockayne, D MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES |
| title | MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES |
| title_full | MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES |
| title_fullStr | MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES |
| title_full_unstemmed | MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES |
| title_short | MISFIT DISLOCATION GENERATION FROM DISSOCIATED THREADING DISLOCATIONS IN STRAINED-LAYER HETEROSTRUCTURES |
| title_sort | misfit dislocation generation from dissociated threading dislocations in strained layer heterostructures |
| work_keys_str_mv | AT zouj misfitdislocationgenerationfromdissociatedthreadingdislocationsinstrainedlayerheterostructures AT cockayned misfitdislocationgenerationfromdissociatedthreadingdislocationsinstrainedlayerheterostructures |