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dc.contributor.authorLe-Parc, Rozennpt_BR
dc.contributor.authorBuixaderas, Elenapt_BR
dc.contributor.authorLevelut, Clairept_BR
dc.contributor.authorHermet, Patrickpt_BR
dc.contributor.authorPereira, Altair Soriapt_BR
dc.contributor.authorCambon, Olivierpt_BR
dc.contributor.authorRoiland, Clairept_BR
dc.contributor.authorSimon, Patrickpt_BR
dc.contributor.authorHaines, Julianpt_BR
dc.date.accessioned2020-12-05T04:26:39Zpt_BR
dc.date.issued2019pt_BR
dc.identifier.issn0003-6951pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/216114pt_BR
dc.description.abstractThe Raman modes of α-quartz-type boron phosphate were found to be extremely stable in frequency over a large temperature range from 300–1000 K. In order to determine the origin of this behavior, the material was also studied at high pressure up to 6 GPa. Upon compression, a classical behavior was observed with mode Grüneisen parameters ranging from −0.08(2) to 3.0(1). The present results indicate that the high temperature behavior in this material is an example of an unusual compensation effect between phonon–phonon interactions and implicit contributions due to thermal expansion. Phonon stability is of utmost importance for materials properties that are dependent on it such as dielectric and piezoelectric properties, for example. Boron phosphate belongs to the important class of α-quartz-type piezoelectric materials for which temperature stability is of primordial importance for resonator and sensor applicationsen
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofApplied physics letters. New York. Vol. 115, no. 14 (Sept. 2019), 141902, 6 p.pt_BR
dc.rightsOpen Accessen
dc.subjectFononspt_BR
dc.subjectBoropt_BR
dc.subjectEspectroscopia ramanpt_BR
dc.subjectMateriais piezoelétricospt_BR
dc.subjectAltas temperaturaspt_BR
dc.titleUltrastable phonon frequencies in α-quartz-type BPO4 at high temperaturept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001105778pt_BR
dc.type.originEstrangeiropt_BR


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