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Modeling the amorphous-to-crystalline phase transformation in network materials

Abstract:
We have developed a computationally efficient rate equation model to study transformations between amorphous and crystalline phases of network forming materials. Amorphous and crystalline phases are treated in terms of their atomic ring distributions. The transformation between the two phases is considered to be driven by the conversion of one set of rings into another, following the Wooten-Winer-Weaire bond-switching algorithm. Our rate equation model describes both the generation and collapse of amorphous regions in thin crystalline films, the processes crucial for phase-change data storage materials. It is found that the amorphous spot collapse is assisted by the motion of certain crystal facets.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.71.235309

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author


Publisher:
American Physical Society
Journal:
Physical Review B More from this journal
Volume:
71
Issue:
23
Pages:
235309
Publication date:
2005-06-01
Edition:
Publisher's version
DOI:
EISSN:
1550-235x
ISSN:
1098-0211


Language:
English
Keywords:
Subjects:
UUID:
uuid:b6459fff-3702-4bde-b451-07013fe670f4
Local pid:
ora:1024
Deposit date:
2008-03-14

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