2013
DOI: 10.7567/jjap.52.111501
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Raman Evidence for Ba-Site Ce3+ in BaTiO3

Abstract: To obtain evidence of the existence of Ce3+ at Ba sites in BaTiO3, the nominal (Ba1-x Ce x )Ti1-x/4O3 (BCT) and Ba(Ti1-x Ce x )O3 (BTC) ceramics prepared under different conditions were investigated by Raman spectroscopy. A band at ∼840 cm-1 that appears in all BCT samples is evidence of the existence of Ce3+ at Ba sites in the BaTiO3 lattice. For BTC, Raman scattering experiments give convincing e… Show more

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Cited by 23 publications
(19 citation statements)
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“…This band at 830~840 cm −1 was found in many inequitable doping BaTiO 3 systems such as La 3+ ions, Nd 3+ ions, Eu 3+ ions, Ce 3+ ions at Ba sites, and Ca 2+ ions at Ti sites in the previous reports242527383940. According to previous works and the ion size factor in BaTiO 3 system, this mode at about ~840 cm −1 is attributed to an internal deformation of the BO 6 octahedron caused by the charge difference of different types of ions at equivalent sites in BaTiO 3 1724252738394041. Correspondingly, the weak peak at ~840 cm −1 in BaTiO 3 doping with Ce may be attributed to Ce entering Ba sites as Ce 3+ , while it has no connection with Ce 4+ at Ti sites27.…”
Section: Resultsmentioning
confidence: 66%
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“…This band at 830~840 cm −1 was found in many inequitable doping BaTiO 3 systems such as La 3+ ions, Nd 3+ ions, Eu 3+ ions, Ce 3+ ions at Ba sites, and Ca 2+ ions at Ti sites in the previous reports242527383940. According to previous works and the ion size factor in BaTiO 3 system, this mode at about ~840 cm −1 is attributed to an internal deformation of the BO 6 octahedron caused by the charge difference of different types of ions at equivalent sites in BaTiO 3 1724252738394041. Correspondingly, the weak peak at ~840 cm −1 in BaTiO 3 doping with Ce may be attributed to Ce entering Ba sites as Ce 3+ , while it has no connection with Ce 4+ at Ti sites27.…”
Section: Resultsmentioning
confidence: 66%
“…According to previous works and the ion size factor in BaTiO 3 system, this mode at about ~840 cm −1 is attributed to an internal deformation of the BO 6 octahedron caused by the charge difference of different types of ions at equivalent sites in BaTiO 3 1724252738394041. Correspondingly, the weak peak at ~840 cm −1 in BaTiO 3 doping with Ce may be attributed to Ce entering Ba sites as Ce 3+ , while it has no connection with Ce 4+ at Ti sites27. The weak peak in BaTiO 3 doping with Ca may be attributed to partial migration of Ca 2+ from Ba to Ti sites2425.…”
Section: Resultsmentioning
confidence: 75%
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“…On the other hand, the structural information of BaTiO 3 doped with most rare earths such as La 1720 , Ce 21, 22 , Pr 23 , Nd 24 , Eu 25 , Tb 26 , Dy 27 , Er 28 , Yb 29, 30 , has been reported via laser Raman spectroscopy to date. However, no Raman information is known about Ho-doped BaTiO 3 .…”
Section: Introductionmentioning
confidence: 99%
“…7 It has been established that a d 0 electronic configuration of B sites cation imparts ferroelectric and a d n electronic configuration of A-site cation imparts ferromagnetic behavior to perovskite materials. [10][11][12][13][14] It has also been studied that B-site doping of ABO 3 structure using transition metal ions imparts magnetic behavior to these formed solid solutions. However, the ferroelectricity in perovskites may also originate from lone pair of electrons on the A-site cation.…”
Section: Introductionmentioning
confidence: 99%