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

doi:10.1021/cm900148a

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

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

7 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	2436-2441
Número de páginas	6
Publicación	Chemistry of Materials
Volumen	21
N.º	12
DOI	https://doi.org/10.1021/cm900148a
Estado	Publicada - 23 jun. 2009
Publicado de forma externa	Sí

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10.1021/cm900148a

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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.",

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AU - Ortega-San-Martin, Luis

AU - Williams, Anthony J.

AU - Storer, Alistair

AU - Attfield, J. Paul

PY - 2009/6/23

Y1 - 2009/6/23

N2 - 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.

AB - 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.

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