FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2085452415> ?p ?o ?g. }

• W2085452415 endingPage "132" @default.
• W2085452415 startingPage "121" @default.
• W2085452415 abstract "We report a high-resolution synchrotron X-ray powder diffraction study on (KxNa1−x)MgF3perovskites at high pressures and temperatures. The crystal structure of the perovskite transforms reversibly from orthorhombic (Pbnm) to tetragonal (P4/mbm) to cubic (Pm3m) with change of pressure and temperature and also with K+concentration. The tilt angle of the MgF6octahedral framework decreases continually and the octahedral Mg–F bond length increases slightly with increasing temperature. Correspondingly, at high pressures, the tilting angles increase slightly and the shortening of the Mg–F bond length is the dominant compression mechanism. Both octahedral tilting and bond length decrease with increasing K+participation. We have monitored superlattice diffraction associated with in-phase and antiphase octahedral tiltingsin situand in real time inP–T–Xspace. The intensities of the superlattice diffraction peaks decrease quickly toward zero with increasing temperature and/or K+concentration. Meanwhile, the doublet and triplet diffraction peaks, which directly reflect the dimensional differences of thea,b, andcaxes, converge continuously and finally coalesce into single peaks as the temperature reachesTcand/or the K+concentration reachesXc. The transition temperatures are plotted as a function of pressure (Tc–P), and as a function of composition (Tc–X). The structural phase transitions in (K,Na)MgF3perovskites are driven by two order parameters, which are represented by the octahedral tiltingsθ=(φ−x,φ−y, 0) andϕ=(0, 0,φ+z). The strong coupling between these two order parameters drives the end-member NaMgF3perovskite to transform directly from the orthorhombic to cubic phase at temperatureTc=1038 K. Such direct orthorhombic–cubic phase transition remains unbroken even at pressures up to 10 GPa. However, with increasing incorporation of larger K+cations into the crystal structure, the interaction between the octahedral tiltings was successively decoupled and the purely intermediate tetragonal phase thus appeared aroundX∼35%. The crystal structure of the (KxNa1−x)MgF3perovskites eventually becomes cubic atX∼40%." @default.
• W2085452415 created "2016-06-24" @default.
• W2085452415 creator A5004203338 @default.
• W2085452415 date "1998-11-01" @default.
• W2085452415 modified "2023-09-25" @default.
• W2085452415 title "Crystal Chemistry and Phase Transitions of Perovskite inP–T–XSpace: Data for (KxNa1−x)MgF3Perovskites" @default.
• W2085452415 cites W2003912382 @default.
• W2085452415 cites W2006058470 @default.
• W2085452415 cites W2016260972 @default.
• W2085452415 cites W2018943711 @default.
• W2085452415 cites W2019479117 @default.
• W2085452415 cites W2021727461 @default.
• W2085452415 cites W2021731429 @default.
• W2085452415 cites W2036662009 @default.
• W2085452415 cites W2042788286 @default.
• W2085452415 cites W2045549206 @default.
• W2085452415 cites W2047628952 @default.
• W2085452415 cites W2058195649 @default.
• W2085452415 cites W2071160319 @default.
• W2085452415 cites W2074469808 @default.
• W2085452415 cites W2079339919 @default.
• W2085452415 cites W2082500836 @default.
• W2085452415 cites W2086323796 @default.
• W2085452415 cites W2088066044 @default.
• W2085452415 cites W2099465230 @default.
• W2085452415 cites W2149305005 @default.
• W2085452415 cites W2155176366 @default.
• W2085452415 cites W2166175297 @default.
• W2085452415 doi "https://doi.org/10.1006/jssc.1998.7927" @default.
• W2085452415 hasPublicationYear "1998" @default.
• W2085452415 type Work @default.
• W2085452415 sameAs 2085452415 @default.
• W2085452415 citedByCount "35" @default.
• W2085452415 countsByYear W20854524152012 @default.
• W2085452415 countsByYear W20854524152013 @default.
• W2085452415 countsByYear W20854524152014 @default.
• W2085452415 countsByYear W20854524152015 @default.
• W2085452415 countsByYear W20854524152016 @default.
• W2085452415 countsByYear W20854524152017 @default.
• W2085452415 countsByYear W20854524152018 @default.
• W2085452415 countsByYear W20854524152020 @default.
• W2085452415 countsByYear W20854524152021 @default.
• W2085452415 countsByYear W20854524152022 @default.
• W2085452415 countsByYear W20854524152023 @default.
• W2085452415 crossrefType "journal-article" @default.
• W2085452415 hasAuthorship W2085452415A5004203338 @default.
• W2085452415 hasConcept C105382558 @default.
• W2085452415 hasConcept C115624301 @default.
• W2085452415 hasConcept C120665830 @default.
• W2085452415 hasConcept C121332964 @default.
• W2085452415 hasConcept C149288129 @default.
• W2085452415 hasConcept C155011858 @default.
• W2085452415 hasConcept C155860418 @default.
• W2085452415 hasConcept C170751736 @default.
• W2085452415 hasConcept C178790620 @default.
• W2085452415 hasConcept C185592680 @default.
• W2085452415 hasConcept C192562407 @default.
• W2085452415 hasConcept C198819137 @default.
• W2085452415 hasConcept C207114421 @default.
• W2085452415 hasConcept C26873012 @default.
• W2085452415 hasConcept C37243968 @default.
• W2085452415 hasConcept C44280652 @default.
• W2085452415 hasConcept C49040817 @default.
• W2085452415 hasConcept C50515024 @default.
• W2085452415 hasConcept C73585123 @default.
• W2085452415 hasConcept C8010536 @default.
• W2085452415 hasConceptScore W2085452415C105382558 @default.
• W2085452415 hasConceptScore W2085452415C115624301 @default.
• W2085452415 hasConceptScore W2085452415C120665830 @default.
• W2085452415 hasConceptScore W2085452415C121332964 @default.
• W2085452415 hasConceptScore W2085452415C149288129 @default.
• W2085452415 hasConceptScore W2085452415C155011858 @default.
• W2085452415 hasConceptScore W2085452415C155860418 @default.
• W2085452415 hasConceptScore W2085452415C170751736 @default.
• W2085452415 hasConceptScore W2085452415C178790620 @default.
• W2085452415 hasConceptScore W2085452415C185592680 @default.
• W2085452415 hasConceptScore W2085452415C192562407 @default.
• W2085452415 hasConceptScore W2085452415C198819137 @default.
• W2085452415 hasConceptScore W2085452415C207114421 @default.
• W2085452415 hasConceptScore W2085452415C26873012 @default.
• W2085452415 hasConceptScore W2085452415C37243968 @default.
• W2085452415 hasConceptScore W2085452415C44280652 @default.
• W2085452415 hasConceptScore W2085452415C49040817 @default.
• W2085452415 hasConceptScore W2085452415C50515024 @default.
• W2085452415 hasConceptScore W2085452415C73585123 @default.
• W2085452415 hasConceptScore W2085452415C8010536 @default.
• W2085452415 hasIssue "1" @default.
• W2085452415 hasLocation W20854524151 @default.
• W2085452415 hasOpenAccess W2085452415 @default.
• W2085452415 hasPrimaryLocation W20854524151 @default.
• W2085452415 hasRelatedWork W1973476897 @default.
• W2085452415 hasRelatedWork W1993140126 @default.
• W2085452415 hasRelatedWork W2024690002 @default.
• W2085452415 hasRelatedWork W2088584875 @default.
• W2085452415 hasRelatedWork W2089365959 @default.
• W2085452415 hasRelatedWork W2333652819 @default.
• W2085452415 hasRelatedWork W2521346156 @default.
• W2085452415 hasRelatedWork W2949166169 @default.

• next