TY - JOUR
T1 - Frustrated Orders in the perovskite (Bi 0.5 Sr 0.5)CrO 3
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.
UR - http://www.scopus.com/inward/record.url?scp=67649252864&partnerID=8YFLogxK
U2 - 10.1021/cm900148a
DO - 10.1021/cm900148a
M3 - Article
AN - SCOPUS:67649252864
SN - 0897-4756
VL - 21
SP - 2436
EP - 2441
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 12
ER -