Abstract
Complex perovskite oxides of Sr0.5(Nb0.5Ta 0.5)O3 were synthesized by reassembling (SrNb 2O7)2- and (Sr1.5Ta 3O10)2- nanosheets followed by topochemical dehydration with heat treatment. Atomic force microscopy (AFM) images showed that the thicknesses of the (SrNb2O7)2- and (Sr1.5Ta3O10)2- nanosheets were approximately 6 nm (7 unit layers) and 4 nm (3 unit layers), respectively. Raman scattering measurement has suggested that nanosheet-processed Sr 0.5(Nb0.5Ta0.5)O3 with B-site-cation ordering has a superlattice-like structure composed of alternating layers of Sr0.5NbO3 and Sr0.5TaO3 along the c-axis. Nanosheet-processed Sr0.5(Nb0.5Ta 0.5)O3 with B-site-cation ordering exhibited a dielectric permittivity of 42 (1 MHz), which was lower than that of solid-state-reacted samples (65) with disordered B-site cations.
| Original language | English |
|---|---|
| Pages (from-to) | 55-58 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 350 |
| DOIs | |
| Publication status | Published - 2007 |
| Externally published | Yes |
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Keywords
- Complex perovskite oxides
- Dielectric permittivity
- Nanosheets
- Reassembled material
ASJC Scopus subject areas
- Ceramics and Composites
- Chemical Engineering (miscellaneous)
Cite this
Synthesis of complex perovskite oxides via nanosheets process. / Inaba, Keigo; Suzuki, Shinya; Noguchi, Yuji; Miyayama, Masaru; Osada, Minoru.
In: Key Engineering Materials, Vol. 350, 2007, p. 55-58.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis of complex perovskite oxides via nanosheets process
AU - Inaba, Keigo
AU - Suzuki, Shinya
AU - Noguchi, Yuji
AU - Miyayama, Masaru
AU - Osada, Minoru
PY - 2007
Y1 - 2007
N2 - Complex perovskite oxides of Sr0.5(Nb0.5Ta 0.5)O3 were synthesized by reassembling (SrNb 2O7)2- and (Sr1.5Ta 3O10)2- nanosheets followed by topochemical dehydration with heat treatment. Atomic force microscopy (AFM) images showed that the thicknesses of the (SrNb2O7)2- and (Sr1.5Ta3O10)2- nanosheets were approximately 6 nm (7 unit layers) and 4 nm (3 unit layers), respectively. Raman scattering measurement has suggested that nanosheet-processed Sr 0.5(Nb0.5Ta0.5)O3 with B-site-cation ordering has a superlattice-like structure composed of alternating layers of Sr0.5NbO3 and Sr0.5TaO3 along the c-axis. Nanosheet-processed Sr0.5(Nb0.5Ta 0.5)O3 with B-site-cation ordering exhibited a dielectric permittivity of 42 (1 MHz), which was lower than that of solid-state-reacted samples (65) with disordered B-site cations.
AB - Complex perovskite oxides of Sr0.5(Nb0.5Ta 0.5)O3 were synthesized by reassembling (SrNb 2O7)2- and (Sr1.5Ta 3O10)2- nanosheets followed by topochemical dehydration with heat treatment. Atomic force microscopy (AFM) images showed that the thicknesses of the (SrNb2O7)2- and (Sr1.5Ta3O10)2- nanosheets were approximately 6 nm (7 unit layers) and 4 nm (3 unit layers), respectively. Raman scattering measurement has suggested that nanosheet-processed Sr 0.5(Nb0.5Ta0.5)O3 with B-site-cation ordering has a superlattice-like structure composed of alternating layers of Sr0.5NbO3 and Sr0.5TaO3 along the c-axis. Nanosheet-processed Sr0.5(Nb0.5Ta 0.5)O3 with B-site-cation ordering exhibited a dielectric permittivity of 42 (1 MHz), which was lower than that of solid-state-reacted samples (65) with disordered B-site cations.
KW - Complex perovskite oxides
KW - Dielectric permittivity
KW - Nanosheets
KW - Reassembled material
UR - http://www.scopus.com/inward/record.url?scp=34547544808&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547544808&partnerID=8YFLogxK
U2 - 10.4028/0-87849-449-9.55
DO - 10.4028/0-87849-449-9.55
M3 - Article
AN - SCOPUS:34547544808
VL - 350
SP - 55
EP - 58
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
ER -