Frustrated Orders in the perovskite (Bi 0.5 Sr 0.5)CrO 3

Luis Ortega-San-Martin, Anthony J. Williams, Alistair Storer, J. Paul Attfield

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A new perovskite, (Bi 0.5Sr 0.5)CrO 3, has been prepared at 1000 ° C and ambient pressure, although BiCrO 3and SrCrO 3 are both high pressure phases. The crystal structure is rhombohedral (R3 jca) 5.4652(5) and c) 13.3502(2)at 300 K). Well-defined local Bi 3+ displacements are evident despite an absence of long-range Bi/Sr cation order, but the degree of ferroelectric order is unclear. Long range G-type antiferromagnetic order occurs below 30 K; however, the low value of the ordered magnetic moment a high frustration index, and low temperature divergence of zero field and field cooled susceptibilities show that a substantial glassy component is also present.

Original languageEnglish
Pages (from-to)2436-2441
Number of pages6
JournalChemistry of Materials
Volume21
Issue number12
DOIs
StatePublished - 23 Jun 2009
Externally publishedYes

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