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Magnetic, Mössbauer and optical spectroscopic properties of the AFe3O(PO4)3 (A = Ca, Sr, Pb) series of powder compounds

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorEL HAFID, Hassan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVELÁZQUEZ, Matias
hal.structure.identifierLaboratoire de Chimie des Matériaux Solides
dc.contributor.authorEL JAZOULI, Abdelaziz
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorWATTIAUX, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARLIER-LARREGARAY, Dany
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDECOURT, Rodolphe
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCOUZI, Michel
hal.structure.identifierUniversité Paris Sciences et Lettres [PSL]
hal.structure.identifierInstitut de Recherche de Chimie Paris [IRCP]
dc.contributor.authorGODNER, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELMAS, Claude
dc.date.issued2014
dc.identifier.issn1293-2558
dc.description.abstractEnAFe3O(PO4)3 (A = Ca, Sr and Pb) powder compounds were studied by means of X-ray diffraction (XRD), electron-probe microanalysis (EPMA) coupled with wavelength dispersion spectroscopy (WDS), Raman and diffuse reflectance spectroscopies, specific heat and magnetic properties measurements. Magnetization, magnetic susceptibility and specific heat measurements carried out on AFe3O(PO4)3 (A = Sr, Ca and Pb) powders firmly establish a series of three ferromagnetic (FM)-like second order phase transitions spanned over the 32-8 K temperature range. Room temperature Mössbauer spectroscopy and associated DFT calculations confirm the existence of three crystallographically non equivalent Fe3+ sites in the three compounds. Mössbauer spectra recorded as a function of temperature in the PbFe3O(PO4)3 compound also establishes the occurrence of two purely magnetic and reversible phase transitions at 32 and 10 K. Diffuse reflectance measurements reveal two broad absorption bands at 1047 and 837 nm, in both PbFe3O(PO4)3 and SrFe3O(PO4)3 powders, with peak cross sections ∼10−20 cm2 typical of spin-forbidden and forced electric dipole intraconfigurational transitions.
dc.language.isoen
dc.publisherElsevier
dc.subject.enX-ray diffraction
dc.subject.enTransition metal phosphates
dc.subject.enPhase transitions
dc.subject.enFerrimagnetism
dc.subject.enMössbauer spectroscopy
dc.subject.enSpecific heat
dc.subject.enRaman spectroscopy
dc.subject.enMagnetic susceptibility
dc.subject.enDiffuse reflectance
dc.title.enMagnetic, Mössbauer and optical spectroscopic properties of the AFe3O(PO4)3 (A = Ca, Sr, Pb) series of powder compounds
dc.typeArticle de revue
dc.identifier.doi10.1016/j.solidstatesciences.2014.07.011
dc.subject.halChimie/Matériaux
bordeaux.journalSolid State Sciences
bordeaux.page52-61
bordeaux.volume36
bordeaux.peerReviewedoui
hal.identifierhal-01071531
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01071531v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Sciences&rft.date=2014&rft.volume=36&rft.spage=52-61&rft.epage=52-61&rft.eissn=1293-2558&rft.issn=1293-2558&rft.au=EL%20HAFID,%20Hassan&VEL%C3%81ZQUEZ,%20Matias&EL%20JAZOULI,%20Abdelaziz&WATTIAUX,%20Alain&CARLIER-LARREGARAY,%20Dany&rft.genre=article


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