Skip to Main content Skip to Navigation
Journal articles

Ubiquity of quantum zero point fluctuations in dislocations glide

Abstract : Modeling the dislocations glide through atomic scale simulations in Al, Cu and Ni and in solid solution alloys Al(Mg) and Cu(Ag), we show that in the course of the plastic deformation the variation of the crystals zero point energy (ZPE) and the dislocation potential energy barriers are of opposite sign. The multiplicity of situations where we have observed the same trend allows usto conclude that quantum fluctuations, giving rise to crystal ZPE make easier the dislocation glide in most materials, even those constituted of atoms heavier than H and He.
Keywords : dislocation glide
Complete list of metadatas

Cited literature [45 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-02418720
Contributor : Amplexor Amplexor <>
Submitted on : Thursday, December 19, 2019 - 9:47:44 AM
Last modification on : Tuesday, April 28, 2020 - 11:28:15 AM
Long-term archiving on: : Friday, March 20, 2020 - 2:19:43 PM

File

PhysRevB.95.094103.pdf
Publisher files allowed on an open archive

Identifiers

Collections

CEA | DEN

Citation

M. Landeiro dos Rei, A. Choudhury, L. Proville. Ubiquity of quantum zero point fluctuations in dislocations glide. Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 2017, 95, pp.094103. ⟨10.1103/PhysRevB.95.094103⟩. ⟨cea-02418720⟩

Share

Metrics

Record views

39

Files downloads

111