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dc.contributor.authorGordillo Bargueño, Maria Carmen
dc.contributor.authorBoronat Medico, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2023-04-05T08:23:13Z
dc.date.issued2023-02-01
dc.identifier.citationGordillo, M.C.; Boronat, J. H2 superglass on an amorphous carbon substrate. "Physical review. B.", 1 Febrer 2023, vol. 107, núm. 6, aticle L060505.
dc.identifier.issn2469-9969
dc.identifier.urihttp://hdl.handle.net/2117/385959
dc.description.abstractThe phase diagram of a para-H2 monolayer absorbed on an experimentally synthesized amorphous carbon sheet was calculated using a diffusion Monte Carlo technique. We found that the ground state of that system changed drastically from a perfectly flat substrate to a situation in which the carbon atoms were allowed a certain degree of disorder in the z direction. In the first case, at zero pressure we have a glass of density 0.056±0.003 Å-2 in equilibrium with an incommensurate solid of 0.068±0.002 Å-2. At the equilibrium density, the glass was found to have a tiny, but non-negligible superfluid fraction of less than 1% (0.44±0.05%). In the z-disordered substrate, we observe a significant enhancement of the superfluid fraction in the glass phase as well as a smaller but not zero value in the incommensurate crystal.
dc.language.isoeng
dc.publisherAmerican Physical Society (APS)
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshMonte Carlo method
dc.subject.other2-dimensional systems
dc.subject.otherMonte Carlo methods
dc.titleH2 superglass on an amorphous carbon substrate
dc.typeArticle
dc.subject.lemacMontecarlo, Mètode de
dc.contributor.groupUniversitat Politècnica de Catalunya. CCQM - Condensed, Complex and Quantum Matter Group
dc.identifier.doi10.1103/PhysRevB.107.L060505
dc.relation.publisherversionhttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.107.L060505
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac35617651
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorGordillo, M. C.; Boronat, J.
local.citation.publicationNamePhysical review. B.
local.citation.volume107
local.citation.number6, aticle L060505


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