A Nanoindentation Study of the Plastic Deformation and Fracture Mechanisms in Single-Crystalline CaFe2As2
dc.contributor.author | Frawley, Keara | |
dc.contributor.author | Bakst, Ian | |
dc.contributor.author | Sypek, John | |
dc.contributor.author | Vijayan, Sriram | |
dc.contributor.author | Weinberger, Christopher | |
dc.contributor.author | Canfield, Paul | |
dc.contributor.author | Aindow, Mark | |
dc.contributor.author | Lee, Seok-Woo | |
dc.contributor.department | Ames National Laboratory | |
dc.contributor.department | Department of Physics and Astronomy | |
dc.contributor.department | Ames Laboratory | |
dc.date | 2018-06-15T14:26:52.000 | |
dc.date.accessioned | 2020-06-29T23:21:11Z | |
dc.date.available | 2020-06-29T23:21:11Z | |
dc.date.embargo | 2019-04-10 | |
dc.date.issued | 2018-01-01 | |
dc.description.abstract | <p>The plastic deformation and fracture mechanisms in single-crystalline CaFe2As2 has been studied using nanoindentation and density functional theory simulations. CaFe2As2 single crystals were grown in a Sn-flux, resulting in homogeneous and nearly defect-free crystals. Nanoindentation along the [001] direction produces strain bursts, radial cracking, and lateral cracking. Ideal cleavage simulations along the [001] and [100] directions using density functional theory calculations revealed that cleavage along the [001] direction requires a much lower stress than cleavage along the [100] direction. This strong anisotropy of cleavage strength implies that CaFe2As2 has an atomic-scale layered structure, which typically exhibits lateral cracking during nanoindentation. This special layered structure results from weak atomic bonding between the (001) Ca and Fe2As2 layers.</p> | |
dc.identifier | archive/lib.dr.iastate.edu/ameslab_manuscripts/187/ | |
dc.identifier.articleid | 1191 | |
dc.identifier.contextkey | 12323700 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | ameslab_manuscripts/187 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/7108 | |
dc.language.iso | en | |
dc.relation.ispartofseries | IS-J 9667 | |
dc.source.bitstream | archive/lib.dr.iastate.edu/ameslab_manuscripts/187/IS_J_9667.pdf|||Fri Jan 14 21:45:50 UTC 2022 | |
dc.source.uri | 10.1007/s11837-018-2851-y | |
dc.subject.disciplines | Condensed Matter Physics | |
dc.subject.disciplines | Materials Science and Engineering | |
dc.title | A Nanoindentation Study of the Plastic Deformation and Fracture Mechanisms in Single-Crystalline CaFe2As2 | |
dc.type | article | |
dc.type.genre | article | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | c5a8128b-7d98-4b8f-92d7-b1385e345713 | |
relation.isOrgUnitOfPublication | 25913818-6714-4be5-89a6-f70c8facdf7e | |
relation.isOrgUnitOfPublication | 4a05cd4d-8749-4cff-96b1-32eca381d930 |
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