Experimental evidence of new tetragonal polymorphs of silicon formed through ultrafast laser-induced confined microexplosion
-
Altmetric Citations
Rapp, Ludovic; Haberl, Bianca; Pickard, C J; Bradby, Jodie; Gamaly, Eugene G; Williams, James; Rode, Andrei V
Description
Ordinary materials can transform into novel phases at extraordinary high pressure and temperature. The recently developed method of ultrashort laser-induced confined microexplosions initiates a non-equilibrium disordered plasma state. Ultra-high quenching rates overcome kinetic barriers to the formation of new metastable phases, which are preserved in the surrounding pristine crystal for subsequent exploitation. Here we demonstrate that confined microexplosions in silicon produce several...[Show more]
dc.contributor.author | Rapp, Ludovic | |
---|---|---|
dc.contributor.author | Haberl, Bianca | |
dc.contributor.author | Pickard, C J | |
dc.contributor.author | Bradby, Jodie | |
dc.contributor.author | Gamaly, Eugene G | |
dc.contributor.author | Williams, James | |
dc.contributor.author | Rode, Andrei V | |
dc.date.accessioned | 2015-12-13T22:36:16Z | |
dc.identifier.issn | 2041-1723 | |
dc.identifier.uri | http://hdl.handle.net/1885/76689 | |
dc.description.abstract | Ordinary materials can transform into novel phases at extraordinary high pressure and temperature. The recently developed method of ultrashort laser-induced confined microexplosions initiates a non-equilibrium disordered plasma state. Ultra-high quenching rates overcome kinetic barriers to the formation of new metastable phases, which are preserved in the surrounding pristine crystal for subsequent exploitation. Here we demonstrate that confined microexplosions in silicon produce several metastable end phases. Comparison with an ab initio random structure search reveals six energetically competitive potential phases, four tetragonal and two monoclinic structures. We show the presence of bt8 and st12, which have been predicted theoretically previously, but have not been observed in nature or in laboratory experiments. In addition, the presence of the as yet unidentified silicon phase, Si-VIII and two of our other predicted tetragonal phases are highly likely within laser-affected zones. These findings may pave the way for new materials with novel and exotic properties. | |
dc.publisher | Macmillan Publishers Ltd | |
dc.rights | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ | |
dc.source | Nature Communications | |
dc.title | Experimental evidence of new tetragonal polymorphs of silicon formed through ultrafast laser-induced confined microexplosion | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 6 | |
dc.date.issued | 2015 | |
local.identifier.absfor | 020400 - CONDENSED MATTER PHYSICS | |
local.identifier.absfor | 100700 - NANOTECHNOLOGY | |
local.identifier.absfor | 100708 - Nanomaterials | |
local.identifier.ariespublication | U3488905xPUB5488 | |
local.type.status | Published Version | |
local.contributor.affiliation | Rapp, Ludovic, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Haberl, Bianca, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Pickard, C J, University College London | |
local.contributor.affiliation | Bradby, Jodie, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Gamaly, Eugene G, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Williams, James, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Rode, Andrei V, College of Physical and Mathematical Sciences, ANU | |
local.bibliographicCitation.issue | 7555 | |
local.bibliographicCitation.startpage | 10 | |
local.identifier.doi | 10.1038/ncomms8555 | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2015-12-11T09:31:02Z | |
local.identifier.scopusID | 2-s2.0-84934312523 | |
dcterms.accessRights | Open Access | |
Collections | ANU Research Publications |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01_Rapp_Experimental_evidence_of_new_2015.pdf | 2 MB | Adobe PDF |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator