Elastic properties of plastic crystals with colossal caloric effects

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dc.contributor.advisorMañosa, Lluís
dc.contributor.authorSalvadó Fernández, Jaume
dc.date.accessioned2026-09-14T09:00:51Z
dc.date.available2026-09-14T09:00:51Z
dc.date.issued2026-06
dc.descriptionTreballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2026, Tutor: Lluís Mañosa Carrera
dc.description.abstractPulse/echo measurements were performed on pellets of the plastic crystals Neopentyl Glycol (NPG) and 1-Bromoadamantane (1-Br-Ad) to obtain the C11 elastic constant in the plastic and crystalline phases, and across the phase transition. The values in the plastic phase (C11 = 2.8 ± 1.5 GPa for NPG and C11 = 3.7 ± 1.5 GPa for 1-Br-Ad) are significantly lower than in the crystal phase (C11 = 8.3 ± 0.5 GPa and C11 = 4.9 ± 0.5 GPa). Furthermore, the attenuation of ultrasonic waves is larger in the plastic phase.
dc.format.extent6 p.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttps://hdl.handle.net/2445/231465
dc.language.isoeng
dc.rightscc-by-nc-nd (c) Salvadó Fernández, Jaume, 2026
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceTreballs Finals de Grau (TFG) - Física
dc.subject.classificationCristallscat
dc.subject.classificationUltrasonscat
dc.subject.classificationTreballs de fi de graucat
dc.subject.otherCrystalseng
dc.subject.otherUltrasonicseng
dc.subject.otherBachelor's theseseng
dc.titleElastic properties of plastic crystals with colossal caloric effects
dc.typeinfo:eu-repo/semantics/bachelorThesis

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