Structure and properties of strained crystalline multilayers

J. Hoekstra*, H. Yan, G. Kalonji, H. Jonsson

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

We present a computer simulation study of thin crystalline multilayers constructed from two FCC solids with differing lattice constants and binding energies. Both materials are described by Lennard-Jones interatomic potentials and initially have the same orientation and coherent interfaces. We have studied systems in which interfaces are perpendicular to the common [100] and [111] directions, respectively. A novel technique for analyzing local atomic ordering, Common Neighbor Analysis, is used to identify structural characteristics in these systems. We have found several structural changes in the layers of smaller atoms, including an FCC to HCP transition. In a system with (111) texture, a coherent interface to incoherent interface transformation is observed. Calculations of elastic constants of these multilayer structures show that elastic anomalies are associated with the structural variations.

Original languageEnglish
Pages (from-to)349-354
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume351
DOIs
Publication statusPublished - 1994
EventProceedings of the 1994 MRS Symposium - San Francisco, CA, USA
Duration: 4 Apr 19948 Apr 1994

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