Phase transition, thermal expansion and electrical properties of BiCu2VO6

I R  Evans; S W  Tao; J T S  Irvine

doi:10.1016/j.jssc.2005.07.006

Phase transition, thermal expansion and electrical properties of BiCu2VO6

I R Evans, S W Tao, J T S Irvine

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9 Citations (Scopus)

Abstract

Phase transition in BiCU2VO6 has been studied by variable temperature powder and single crystal X-ray diffraction. A reversible siiigle-crystal-to-single-crystaI phase transition has been identified and the high-temperature beta-BiCu2VO6 polymorph structurally characterized. beta-BiCu2VO6 is monoclinic 1-centered and related to the alpha-form by a subgroup-supergroup relationship. Bi atoms are coordinated to oxygen so as to give rise to (BiO2)(-) chains parallel to the c-axis. The magnetic Cu-O sublattice forms a complex system of quasi one-diniensional ladders, built up by five- and six-coordinate Cu atoms. Dynamic disorder in the high temperature structure can be described in terms of librational motion of VO4 tetrahedral group. AC impedance measurements suggest predominantly electronic conduction in this material. (c) 2005 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	2927-2933
Number of pages	7
Journal	Journal of Solid State Chemistry
Volume	178
DOIs	https://doi.org/10.1016/j.jssc.2005.07.006
Publication status	Published - Sept 2005

Keywords

phase transitions
VANADATE

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10.1016/j.jssc.2005.07.006

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title = "Phase transition, thermal expansion and electrical properties of BiCu2VO6",

abstract = "Phase transition in BiCU2VO6 has been studied by variable temperature powder and single crystal X-ray diffraction. A reversible siiigle-crystal-to-single-crystaI phase transition has been identified and the high-temperature beta-BiCu2VO6 polymorph structurally characterized. beta-BiCu2VO6 is monoclinic 1-centered and related to the alpha-form by a subgroup-supergroup relationship. Bi atoms are coordinated to oxygen so as to give rise to (BiO2)(-) chains parallel to the c-axis. The magnetic Cu-O sublattice forms a complex system of quasi one-diniensional ladders, built up by five- and six-coordinate Cu atoms. Dynamic disorder in the high temperature structure can be described in terms of librational motion of VO4 tetrahedral group. AC impedance measurements suggest predominantly electronic conduction in this material. (c) 2005 Elsevier Inc. All rights reserved.",

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T1 - Phase transition, thermal expansion and electrical properties of BiCu2VO6

AU - Evans, I R

AU - Tao, S W

AU - Irvine, J T S

PY - 2005/9

Y1 - 2005/9

N2 - Phase transition in BiCU2VO6 has been studied by variable temperature powder and single crystal X-ray diffraction. A reversible siiigle-crystal-to-single-crystaI phase transition has been identified and the high-temperature beta-BiCu2VO6 polymorph structurally characterized. beta-BiCu2VO6 is monoclinic 1-centered and related to the alpha-form by a subgroup-supergroup relationship. Bi atoms are coordinated to oxygen so as to give rise to (BiO2)(-) chains parallel to the c-axis. The magnetic Cu-O sublattice forms a complex system of quasi one-diniensional ladders, built up by five- and six-coordinate Cu atoms. Dynamic disorder in the high temperature structure can be described in terms of librational motion of VO4 tetrahedral group. AC impedance measurements suggest predominantly electronic conduction in this material. (c) 2005 Elsevier Inc. All rights reserved.

AB - Phase transition in BiCU2VO6 has been studied by variable temperature powder and single crystal X-ray diffraction. A reversible siiigle-crystal-to-single-crystaI phase transition has been identified and the high-temperature beta-BiCu2VO6 polymorph structurally characterized. beta-BiCu2VO6 is monoclinic 1-centered and related to the alpha-form by a subgroup-supergroup relationship. Bi atoms are coordinated to oxygen so as to give rise to (BiO2)(-) chains parallel to the c-axis. The magnetic Cu-O sublattice forms a complex system of quasi one-diniensional ladders, built up by five- and six-coordinate Cu atoms. Dynamic disorder in the high temperature structure can be described in terms of librational motion of VO4 tetrahedral group. AC impedance measurements suggest predominantly electronic conduction in this material. (c) 2005 Elsevier Inc. All rights reserved.

KW - phase transitions

KW - VANADATE

UR - http://www.scopus.com/inward/record.url?scp=24144502513&partnerID=8YFLogxK

U2 - 10.1016/j.jssc.2005.07.006

DO - 10.1016/j.jssc.2005.07.006

M3 - Article

SN - 0022-4596

VL - 178

SP - 2927

EP - 2933

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

Phase transition, thermal expansion and electrical properties of BiCu2VO6

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