Electronic structure of A- and B-site doped lanthanum manganites: A combined X-ray spectroscopic study

DC FieldValueLanguage
dc.contributor.authorKuepper, K
dc.contributor.authorFalub, MC
dc.contributor.authorPrince, KC
dc.contributor.authorGalakhov, VR
dc.contributor.authorTroyanchuk, IO
dc.contributor.authorChiuzbaian, SG
dc.contributor.authorMatteucci, M
dc.contributor.authorWett, D
dc.contributor.authorSzargan, R
dc.contributor.authorOvechkina, NA
dc.contributor.authorMukovskii, YM
dc.contributor.authorNeumann, M
dc.date.accessioned2021-12-23T16:23:55Z-
dc.date.available2021-12-23T16:23:55Z-
dc.date.issued2005
dc.identifier.issn15206106
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/14715-
dc.description.abstractThe electronic properties of a series of colossal magnetoresistance (CMR) compounds, namely LaMnO3, La1-x,Ba,,xMnO3 (0.2 <= x <= 0.55), La0.76Ba0.24Mn0.84CO0.16O3, and La0.76Ba0.24Mn0.78Ni0.22O3, have been investigated in a detailed spectroscopic study. A combination of X-ray photoelectron spectroscopy (XPS), X-ray emission spectroscopy (XES), X-ray absorption spectroscopy (XAS), and resonant inelastic X-ray scattering (RIXS) was used to reveal a detailed picture of the electronic structure in the presence of Ba, Co, and Ni doping in different concentrations. The results are compared with available theory. The valence band of La1-x,BaxMnO3 (0 <= x <= 0.55) is dominated by La 5p, Mn 3d, and 0 2p states, and strong hybridization between Mn 3d and 0 2p states is present over the whole range of Ba concentrations. Co-doping at the Mn site leads to an increased occupancy of the e(g) states near the Fermi energy and an increase in the XPS valence band intensity between 0.5 and 5 eV, whereas the Ni-doped sample shows a lower density of occupied states near the Fermi energy. The Ni d states are located in a band spanning the energy range of 1.5-5 eV. XAS spectra indicate that the hole doping leads to mixed Mn 3d-O 2p states. Furthermore, RIXS at the Mn L edge has been used to probe d-d transitions and charge-transfer excitations in La1-x,Ba,,xMnO3.
dc.language.isoen
dc.publisherAMER CHEMICAL SOC
dc.relation.ispartofJOURNAL OF PHYSICAL CHEMISTRY B
dc.subjectABSORPTION
dc.subjectBAND-STRUCTURE
dc.subjectChemistry
dc.subjectChemistry, Physical
dc.subjectEMISSION
dc.subjectFLUORESCENCE
dc.subjectLA1-XSRXMNO3
dc.subjectMAGNETIC-PROPERTIES
dc.subjectMAGNETOTRANSPORT PROPERTIES
dc.subjectSCATTERING
dc.subjectSPECTRA
dc.subjectTRANSITION
dc.titleElectronic structure of A- and B-site doped lanthanum manganites: A combined X-ray spectroscopic study
dc.typejournal article
dc.identifier.doi10.1021/jp044447w
dc.identifier.isiISI:000229134000025
dc.description.volume109
dc.description.issue19
dc.description.startpage9354
dc.description.endpage9361
dc.contributor.orcid0000-0002-6537-5423
dc.contributor.orcid0000-0002-1642-7362
dc.contributor.orcid0000-0002-5416-7354
dc.contributor.researcheridB-5387-2019
dc.contributor.researcheridG-1397-2016
dc.contributor.researcheridJ-6030-2013
dc.identifier.eissn15205207
dc.publisher.place1155 16TH ST, NW, WASHINGTON, DC 20036 USA
dcterms.isPartOf.abbreviationJ. Phys. Chem. B
crisitem.author.deptFB 04 - Physik-
crisitem.author.deptidfb04-
crisitem.author.parentorgUniversität Osnabrück-
crisitem.author.netidKuKa120-
Show simple item record

Page view(s)

2
Last Week
0
Last month
0
checked on Jun 24, 2024

Google ScholarTM

Check

Altmetric