 |
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
Cited literature [45 references]
https://hal-cea.archives-ouvertes.fr/cea-02418720
Contributor : Amplexor Amplexor <>
Submitted on : Thursday, December 19, 2019 - 9:47:44 AM
Last modification on : Monday, January 18, 2021 - 12:20:06 PM
Long-term archiving on: : Friday, March 20, 2020 - 2:19:43 PM
Contributor : Amplexor Amplexor <>
Submitted on : Thursday, December 19, 2019 - 9:47:44 AM
Last modification on : Monday, January 18, 2021 - 12:20:06 PM
Long-term archiving on: : Friday, March 20, 2020 - 2:19:43 PM
File
PhysRevB.95.094103.pdf
Publisher files allowed on an open archive