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dc.contributor.authorTing, Yi
dc.contributor.authorTu, Chi-Shun
dc.contributor.authorChen, Pin-Yi
dc.contributor.authorChen, Cheng-Sao
dc.contributor.authorAnthoniappen, J.
dc.contributor.authorSchmidt, V. Hugo
dc.contributor.authorLee, Jenn-Min
dc.contributor.authorChan, Ting-Shan
dc.contributor.authorChen, Wei-Yu
dc.contributor.authorSong, Rui-Wen
dc.description.abstractMagnetization hysteresis loops, dc and ac magnetic susceptibilities, and Raman vibrations have been characterized in (Bi1−xBax)FeO3−δ ceramics for x = 0.0, 0.05, 0.10, and 0.15 as functions of temperature. Ferromagnetic hysteresis loops were observed in Ba-doped compounds with increasing magnetization as Ba substitution increases. High-resolution synchrotron Fe K- and L2,3-edge X-ray absorptions reveal an Fe3+ valence and a modification of the Fe–O–Fe bond structure by the A-site Ba substitution. The oxygen K-edge X-ray absorption suggests that the hybridization of the O 2p and Fe 3d orbitals was reduced by the Ba2+ substitution. Field-cooled and zero-field-cooled magnetic susceptibilities reveal a spin-glass behavior, which was enhanced with increasing Ba substitution. Raman vibrations of the Bi- and Fe-sensitive E(2) and A1(1) modes reveal frequency softening and step-like anomalies in full-width-at-half-maximum in the vicinity of ~150–250 K, which were attributed to spin–phonon interaction while magnetic ordering transitions take place.en_US
dc.description.sponsorshipMinistry of Science and Technology of Taiwan (104-2221-E-030-014, 104-2221-E-146-001)en_US
dc.titleMagnetization, phonon, and X-ray edge absorption in barium doped BiFeO3 ceramicsen_US
mus.citation.journaltitleJournal of Materials Scienceen_US
mus.identifier.categoryChemical & Material Sciencesen_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.universityMontana State University - Bozemanen_US

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