The structure of a new nano-phase of lanthanum-doped strontium titanate

Ercin C. Duran; Alexander S. Eggeman

doi:10.1016/j.jssc.2020.121795

The structure of a new nano-phase of lanthanum-doped strontium titanate

Ercin C. Duran, Alexander S. Eggeman^*

^*Bu çalışma için yazışmadan sorumlu yazar

University of Manchester

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

1 Atıf (Scopus)

Özet

A novel ordered phase in La-doped SrTiO₃ was determined through three-dimensional electron diffraction studies. An overall stoichiometry of LaSr₇Ti₈O₂₃ leads to a monoclinic structure with layers of square pyramids of TiO₅ localised near the lanthanum substituted positions. The difference in crystal structure of the nanoprecipitates, particularly the connection of the rigid Ti–O frameworks, should affect the phonon interactions in the bulk material and so helps to explain a decrease in the lattice thermal conductivity in the La-doped SrTiO₃, which is beneficial towards desired thermoelectric properties.

Orijinal dil	İngilizce
Makale numarası	121795
Dergi	Journal of Solid State Chemistry
Hacim	293
DOI'lar	https://doi.org/10.1016/j.jssc.2020.121795
Yayın durumu	Yayınlandı - Oca 2021
Harici olarak yayınlandı	Evet

Bibliyografik not

Publisher Copyright:
© 2020 The Authors

Finansman

The authors would like to acknowledge financial support from The Royal Society and the EPSRC through grant number EP / S021531 /1 . Ercin C. Duran would also like to acknowledge financial support from The Ministry of National Education of Republic of Turkey . The authors thank Dr Feridoon Azough for supplying the materials and discussion and comments around the research.

Finansörler	Finansör numarası
Ministry of National Education of Republic of Turkey
Engineering and Physical Sciences Research Council	EP / S021531 /1
Royal Society

Belgeye Erişim

10.1016/j.jssc.2020.121795

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "The structure of a new nano-phase of lanthanum-doped strontium titanate",

abstract = "A novel ordered phase in La-doped SrTiO3 was determined through three-dimensional electron diffraction studies. An overall stoichiometry of LaSr7Ti8O23 leads to a monoclinic structure with layers of square pyramids of TiO5 localised near the lanthanum substituted positions. The difference in crystal structure of the nanoprecipitates, particularly the connection of the rigid Ti–O frameworks, should affect the phonon interactions in the bulk material and so helps to explain a decrease in the lattice thermal conductivity in the La-doped SrTiO3, which is beneficial towards desired thermoelectric properties.",

keywords = "Precession electron diffraction, Structure determination, Thermoelectrics",

author = "Duran, {Ercin C.} and Eggeman, {Alexander S.}",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors",

year = "2021",

month = jan,

doi = "10.1016/j.jssc.2020.121795",

language = "English",

volume = "293",

journal = "Journal of Solid State Chemistry",

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TY - JOUR

T1 - The structure of a new nano-phase of lanthanum-doped strontium titanate

AU - Duran, Ercin C.

AU - Eggeman, Alexander S.

PY - 2021/1

Y1 - 2021/1

N2 - A novel ordered phase in La-doped SrTiO3 was determined through three-dimensional electron diffraction studies. An overall stoichiometry of LaSr7Ti8O23 leads to a monoclinic structure with layers of square pyramids of TiO5 localised near the lanthanum substituted positions. The difference in crystal structure of the nanoprecipitates, particularly the connection of the rigid Ti–O frameworks, should affect the phonon interactions in the bulk material and so helps to explain a decrease in the lattice thermal conductivity in the La-doped SrTiO3, which is beneficial towards desired thermoelectric properties.

AB - A novel ordered phase in La-doped SrTiO3 was determined through three-dimensional electron diffraction studies. An overall stoichiometry of LaSr7Ti8O23 leads to a monoclinic structure with layers of square pyramids of TiO5 localised near the lanthanum substituted positions. The difference in crystal structure of the nanoprecipitates, particularly the connection of the rigid Ti–O frameworks, should affect the phonon interactions in the bulk material and so helps to explain a decrease in the lattice thermal conductivity in the La-doped SrTiO3, which is beneficial towards desired thermoelectric properties.

KW - Precession electron diffraction

KW - Structure determination

KW - Thermoelectrics

UR - http://www.scopus.com/inward/record.url?scp=85096215933&partnerID=8YFLogxK

U2 - 10.1016/j.jssc.2020.121795

DO - 10.1016/j.jssc.2020.121795

M3 - Article

AN - SCOPUS:85096215933

SN - 0022-4596

VL - 293

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

M1 - 121795

ER -

The structure of a new nano-phase of lanthanum-doped strontium titanate

Özet

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

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