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Defects in the Structure of Σ=27 <110> Tilt Grain-Boundaries in Ge.

  • Stuart Mckernan (a1), C. Barry Carter (a1) and Zvi Elgat (a2)

Abstract

General high-angle tilt grain-boundaries may be described by an arrangement of repeating structural units. A particular defect in the normal arrangement of structural units in a Σ=27 <110> tilt grain-boundary in Ge is reported.The defect is characterized by a short segment of (111) facet at the interface, and is associated with a screw dislocation in the boundary plane. This defect accommodates a slight misorientation of the boundary away from the perfect tilt configuration, andmay represent a type of structural unit present in other tilt boundaries containing a small twist component.

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1. Elgat, Z.; PhD Thesis, Cornell University (1985)
2. Elgat, Z., and Carter, C.B.; Ultramicroscopy, 18, 313 (1985)
3. Smith, D.A., Elgat, Z., Krakow, W., Levi, A.A. and Carter, C.B., Ultramicroscopy, 30, 8 (1989)
4. Krakow, W.; Levi, A.A., and Pantelides, S.T.; J. Mat. Res., 5, 587 (1990)
5. Skrotzki, W., Wendt, H., Carter, C.B.; and Kohlstedt, D.L.; Mat. Res.Soc. Symp. Proc. 25,341 (1984)

Defects in the Structure of Σ=27 <110> Tilt Grain-Boundaries in Ge.

  • Stuart Mckernan (a1), C. Barry Carter (a1) and Zvi Elgat (a2)

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