Disorderly conduct in Bi2Ln2Ti3O 12 Aurivillius phases (Ln = La, Pr, Nd, Sm)

Neil C. Hyatt; Joseph A. Hriljac

Disorderly conduct in Bi₂Ln₂Ti₃O ₁₂ Aurivillius phases (Ln = La, Pr, Nd, Sm)

Neil C. Hyatt^*, Joseph A. Hriljac

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Conference article › peer-review

Abstract

The synthesis and structure of triple layered Bi₂Ln ₂Ti₃O₁₂ Aurivillius phases, prepared from K₂Ln₂Ti₃O₁₀ Ruddlesden - Popper precursors has been investigated. In structural terms, these materials may be considered as being composed of a regular intergrowth of [Bi₂O ₂]²⁺ fluorite and [Ln₂Ti₃O ₁₀]² perovskite-type layers. A significant degree of cation disorder is present in the Bi₂Ln₂Ti ₃O₁₂ system, involving the cross substitution of Ln / Bi cations onto the Bi / Ln sites in the fluorite and perovskite-type layers, respectively. Bi / Ln disorder destabilises the presence of the Ln cation in the perovskite-type layer as the size mismatch of the Bi / Ln cations increases. Cation disorder in the Bi₂Ln₂Ti₃O ₁₂ system is therefore significantly suppressed as the size of the lanthanide cation is reduced.

Original language	English
Pages (from-to)	335-340
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	755
Publication status	Published - 10 Nov 2003
Event	Solid-State Chemistry of Inorganic Materials IV - Boston, MA, United States Duration: 2 Dec 2002 → 6 Dec 2002

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{ea46ebc84a844c47a3fd3ef5b5f34e71,

title = "Disorderly conduct in Bi2Ln2Ti3O 12 Aurivillius phases (Ln = La, Pr, Nd, Sm)",

abstract = "The synthesis and structure of triple layered Bi2Ln 2Ti3O12 Aurivillius phases, prepared from K2Ln2Ti3O10 Ruddlesden - Popper precursors has been investigated. In structural terms, these materials may be considered as being composed of a regular intergrowth of [Bi2O 2]2+ fluorite and [Ln2Ti3O 10]2 perovskite-type layers. A significant degree of cation disorder is present in the Bi2Ln2Ti 3O12 system, involving the cross substitution of Ln / Bi cations onto the Bi / Ln sites in the fluorite and perovskite-type layers, respectively. Bi / Ln disorder destabilises the presence of the Ln cation in the perovskite-type layer as the size mismatch of the Bi / Ln cations increases. Cation disorder in the Bi2Ln2Ti3O 12 system is therefore significantly suppressed as the size of the lanthanide cation is reduced.",

author = "Hyatt, {Neil C.} and Hriljac, {Joseph A.}",

year = "2003",

month = nov,

day = "10",

language = "English",

volume = "755",

pages = "335--340",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Cambridge University Press",

note = "Solid-State Chemistry of Inorganic Materials IV ; Conference date: 02-12-2002 Through 06-12-2002",

}

TY - JOUR

T1 - Disorderly conduct in Bi2Ln2Ti3O 12 Aurivillius phases (Ln = La, Pr, Nd, Sm)

AU - Hyatt, Neil C.

AU - Hriljac, Joseph A.

PY - 2003/11/10

Y1 - 2003/11/10

N2 - The synthesis and structure of triple layered Bi2Ln 2Ti3O12 Aurivillius phases, prepared from K2Ln2Ti3O10 Ruddlesden - Popper precursors has been investigated. In structural terms, these materials may be considered as being composed of a regular intergrowth of [Bi2O 2]2+ fluorite and [Ln2Ti3O 10]2 perovskite-type layers. A significant degree of cation disorder is present in the Bi2Ln2Ti 3O12 system, involving the cross substitution of Ln / Bi cations onto the Bi / Ln sites in the fluorite and perovskite-type layers, respectively. Bi / Ln disorder destabilises the presence of the Ln cation in the perovskite-type layer as the size mismatch of the Bi / Ln cations increases. Cation disorder in the Bi2Ln2Ti3O 12 system is therefore significantly suppressed as the size of the lanthanide cation is reduced.

AB - The synthesis and structure of triple layered Bi2Ln 2Ti3O12 Aurivillius phases, prepared from K2Ln2Ti3O10 Ruddlesden - Popper precursors has been investigated. In structural terms, these materials may be considered as being composed of a regular intergrowth of [Bi2O 2]2+ fluorite and [Ln2Ti3O 10]2 perovskite-type layers. A significant degree of cation disorder is present in the Bi2Ln2Ti 3O12 system, involving the cross substitution of Ln / Bi cations onto the Bi / Ln sites in the fluorite and perovskite-type layers, respectively. Bi / Ln disorder destabilises the presence of the Ln cation in the perovskite-type layer as the size mismatch of the Bi / Ln cations increases. Cation disorder in the Bi2Ln2Ti3O 12 system is therefore significantly suppressed as the size of the lanthanide cation is reduced.

UR - http://www.scopus.com/inward/record.url?scp=0242354112&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0242354112

SN - 0272-9172

VL - 755

SP - 335

EP - 340

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Solid-State Chemistry of Inorganic Materials IV

Y2 - 2 December 2002 through 6 December 2002

ER -

Disorderly conduct in Bi2Ln2Ti3O 12 Aurivillius phases (Ln = La, Pr, Nd, Sm)

Abstract

ASJC Scopus subject areas

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Disorderly conduct in Bi₂Ln₂Ti₃O ₁₂ Aurivillius phases (Ln = La, Pr, Nd, Sm)