Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/168577
DC FieldValue
dc.titleOrigin of quasilocal plasmons in Nb-substituted EuTiO3
dc.contributor.authorChaudhuri, A.
dc.contributor.authorMidya, A.
dc.contributor.authorRubi, K.
dc.contributor.authorChi, X.
dc.contributor.authorAsmara, T. C.
dc.contributor.authorYu, X. J.
dc.contributor.authorMahendiran, R.
dc.contributor.authorRusydi, A.
dc.date.accessioned2020-05-28T03:16:55Z
dc.date.available2020-05-28T03:16:55Z
dc.date.issued2019-08-29
dc.identifier.citationChaudhuri, A., Midya, A., Rubi, K., Chi, X., Asmara, T. C., Yu, X. J., Mahendiran, R., Rusydi, A. (2019-08-29). Origin of quasilocal plasmons in Nb-substituted EuTiO3. PHYSICAL REVIEW B 100 (8). ScholarBank@NUS Repository.
dc.identifier.issn24699950
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/168577
dc.description.abstractDoped perovskite oxides are promising "material building blocks" for achieving tunable and intrinsically low-loss plasmonic features in the visible- to near-infrared range, which are unlikely to obtain from conventional plasmonic materials. Here, using a combination of spectroscopic ellipsometry, soft x-ray absorption, x-ray photoemission, and ultraviolet photoemission spectroscopic measurements we observe an unconventional tunable low-loss quasilocal plasmon in the IR energy (<1 eV) range in the Nb-substituted perovskite oxide EuTiO3 (EuTi1-xNbxO3). This low-loss plasmon oscillation is formed by many-body interactions, an interplay of quasifree d1 electrons and hybridizations of Eu 4f-Ti 3d and O 2p-Ti 3d. We find that the Nb substitution at Ti site modifies the TiO6 octahedral tilting and, consequently, alters the electronic structure. Our study reveals the importance of charge, orbital, and lattice to generate plasmons in EuTi1-xNbxO3. © 2019 American Physical Society.
dc.publisherAmerican Physical Society
dc.typeArticle
dc.contributor.departmentDEPT OF CHEMISTRY
dc.contributor.departmentDEPT OF PHYSICS
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.contributor.departmentSINGAPORE SYNCHROTRON LIGHT SOURCE
dc.description.sourcetitlePHYSICAL REVIEW B
dc.description.volume100
dc.description.issue8
dc.published.statePublished
dc.grant.idNRF-CRP15-2015-01
dc.grant.fundingagencyNational Research Foundation
Appears in Collections:Elements
Staff Publications

Show simple item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Origin of quasilocal plasmons in Nb substituted EuTiO3.pdf2.28 MBAdobe PDF

OPEN

Post-printView/Download

Page view(s)

124
checked on Sep 23, 2021

Download(s)

1
checked on Sep 23, 2021

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.