Graphene micro-substrate induced high electron-phonon coupling in MgB <inf>2</inf>

Li, WX; Xu, X; De Silva, KSB; Xiang, FX; Dou, SX

Graphene micro-substrate induced high electron-phonon coupling in MgB <inf>2</inf>

Li, WX Xu, X De Silva, KSB

Xiang, FX Dou, SX

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Applied Superconductivity, 2013, 23 (3)
Issue Date:: 2013-01-21

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Field	Value	Language
dc.contributor.author	Li, WX	en_US
dc.contributor.author	Xu, X	en_US
dc.contributor.author	De Silva, KSB https://orcid.org/0000-0002-3242-4858	en_US
dc.contributor.author	Xiang, FX	en_US
dc.contributor.author	Dou, SX	en_US
dc.date.issued	2013-01-21	en_US
dc.identifier.citation	IEEE Transactions on Applied Superconductivity, 2013, 23 (3)	en_US
dc.identifier.issn	1051-8223	en_US
dc.identifier.uri	http://hdl.handle.net/10453/116446
dc.description.abstract	Electron-phonon coupling strength was studied in graphene-MgB2 composites to explore the possibilities for a higher superconducting transition temperature (Tc). For the first time in the experimental work on MgB2, the Raman active E2g mode was split into two parts: a softened mode corresponding to tensile strain and a hardened mode attributed to the carbon substitution effect. The tensile strain effect is suggested to improve Tc of graphene-MgB2 composites because it increases the electron-phonon coupling strength of MgB2. © 2002-2011 IEEE.	en_US
dc.relation.ispartof	IEEE Transactions on Applied Superconductivity	en_US
dc.relation.isbasedon	10.1109/TASC.2012.2231139	en_US
dc.subject.classification	General Physics	en_US
dc.title	Graphene micro-substrate induced high electron-phonon coupling in MgB <inf>2</inf>	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	23	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	23	en_US

Abstract:

Electron-phonon coupling strength was studied in graphene-MgB2 composites to explore the possibilities for a higher superconducting transition temperature (Tc). For the first time in the experimental work on MgB2, the Raman active E2g mode was split into two parts: a softened mode corresponding to tensile strain and a hardened mode attributed to the carbon substitution effect. The tensile strain effect is suggested to improve Tc of graphene-MgB2 composites because it increases the electron-phonon coupling strength of MgB2. © 2002-2011 IEEE.

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