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Trilayer Graphene as a Candidate Material for Phase-Change Memory Applications
KTH, Skolan för informations- och kommunikationsteknik (ICT), Integrerade komponenter och kretsar.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Integrerade komponenter och kretsar.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Material- och nanofysik. KTH, Centra, SeRC - Swedish e-Science Research Centre.ORCID-id: 0000-0002-8222-3157
KTH, Skolan för informations- och kommunikationsteknik (ICT), Integrerade komponenter och kretsar.
Vise andre og tillknytning
2016 (engelsk)Inngår i: MRS Advances, ISSN 2316-7858, E-ISSN 1610-191X, Vol. 1, nr 20, s. 1487-1494Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

There is pressing need in computation of a universal phase change memory consolidating the speed of RAM with the permanency of hard disk storage. A potentiated scanning tunneling microscope tip traversing the soliton separating a metallic, ABA-stacked phase and a semiconducting ABC-stacked phase in trilayer graphene has been shown to permanently transform ABA-stacked regions to ABC-stacked regions. In this study, we used density functional theory (DFT) calculations to assess the energetics of this phase-change and explore the possibility of organic functionalization using s-triazine to facilitate a reverse phase-change from rhombohedral back to Bernal in graphene trilayers. A significant deviation in the energy per simulated atom arises when s-triazine is adsorbed, favoring the transformation of the ABC phase to the ABA phase once more. A phase change memory device utilizing rapid, energy-efficient, reversible, field-induced phase-change in graphene trilayers could potentially revolutionize digital memory industry.

sted, utgiver, år, opplag, sider
Cambridge University Press, 2016. Vol. 1, nr 20, s. 1487-1494
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URN: urn:nbn:se:kth:diva-217091DOI: 10.1557/adv.2016.237ISI: 000412532600013Scopus ID: 2-s2.0-85041334901OAI: oai:DiVA.org:kth-217091DiVA, id: diva2:1158977
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QC 20171121

Tilgjengelig fra: 2017-11-21 Laget: 2017-11-21 Sist oppdatert: 2018-02-12bibliografisk kontrollert

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Elgammal, KarimHammar, MattiasÖstling, Mikael

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