A new homologous series of lanthanum copper oxides

R. J. Cava; T. Siegrist; B. Hessen; J. J. Krajewski; W. F. Peck; B. Batlogg; H. Takagi; J. V. Waszczak; L. F. Schneemeyer; H. W. Zandbergen

doi:10.1016/0022-4596(91)90230-F

A new homologous series of lanthanum copper oxides

R. J. Cava, T. Siegrist, B. Hessen, J. J. Krajewski, W. F. Peck, B. Batlogg, H. Takagi, J. V. Waszczak, L. F. Schneemeyer, H. W. Zandbergen

Chemistry and Biochemistry

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Abstract

We report the synthesis and structural characterization of a new homologous series of lanthanum cuprates, with the formula La_4+4nCu_8+2nO_14+8n. The n = 2 and n = 3 members, La₂Cu₂O₅ and La₈Cu₇O₁₉, synthesized in the bulk, are stable in very narrow temperature ranges in air and oxygen. The n = 4 member was observed by electron microscopy. The crystal structure of La₂Cu₂O₅ consists of thin ribbons of La₂CuO₄ sandwiched between CuO planes of complex low dimensional geometry. The temperature-dependent magnetic susceptibilities of La₂Cu₂O₅ and La₈Cu₇O₁₉ are characteristic of low dimensional Heisenberg antiferromagnets with a low exchange coupling energy.

Original language	English
Pages (from-to)	170-184
Number of pages	15
Journal	Journal of Solid State Chemistry
Volume	94
Issue number	1
DOIs	https://doi.org/10.1016/0022-4596(91)90230-F
State	Published - Sep 1991

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title = "A new homologous series of lanthanum copper oxides",

abstract = "We report the synthesis and structural characterization of a new homologous series of lanthanum cuprates, with the formula La4+4nCu8+2nO14+8n. The n = 2 and n = 3 members, La2Cu2O5 and La8Cu7O19, synthesized in the bulk, are stable in very narrow temperature ranges in air and oxygen. The n = 4 member was observed by electron microscopy. The crystal structure of La2Cu2O5 consists of thin ribbons of La2CuO4 sandwiched between CuO planes of complex low dimensional geometry. The temperature-dependent magnetic susceptibilities of La2Cu2O5 and La8Cu7O19 are characteristic of low dimensional Heisenberg antiferromagnets with a low exchange coupling energy.",

author = "Cava, {R. J.} and T. Siegrist and B. Hessen and Krajewski, {J. J.} and Peck, {W. F.} and B. Batlogg and H. Takagi and Waszczak, {J. V.} and Schneemeyer, {L. F.} and Zandbergen, {H. W.}",

year = "1991",

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doi = "10.1016/0022-4596(91)90230-F",

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volume = "94",

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T1 - A new homologous series of lanthanum copper oxides

AU - Cava, R. J.

AU - Siegrist, T.

AU - Hessen, B.

AU - Krajewski, J. J.

AU - Peck, W. F.

AU - Batlogg, B.

AU - Takagi, H.

AU - Waszczak, J. V.

AU - Schneemeyer, L. F.

AU - Zandbergen, H. W.

PY - 1991/9

Y1 - 1991/9

N2 - We report the synthesis and structural characterization of a new homologous series of lanthanum cuprates, with the formula La4+4nCu8+2nO14+8n. The n = 2 and n = 3 members, La2Cu2O5 and La8Cu7O19, synthesized in the bulk, are stable in very narrow temperature ranges in air and oxygen. The n = 4 member was observed by electron microscopy. The crystal structure of La2Cu2O5 consists of thin ribbons of La2CuO4 sandwiched between CuO planes of complex low dimensional geometry. The temperature-dependent magnetic susceptibilities of La2Cu2O5 and La8Cu7O19 are characteristic of low dimensional Heisenberg antiferromagnets with a low exchange coupling energy.

AB - We report the synthesis and structural characterization of a new homologous series of lanthanum cuprates, with the formula La4+4nCu8+2nO14+8n. The n = 2 and n = 3 members, La2Cu2O5 and La8Cu7O19, synthesized in the bulk, are stable in very narrow temperature ranges in air and oxygen. The n = 4 member was observed by electron microscopy. The crystal structure of La2Cu2O5 consists of thin ribbons of La2CuO4 sandwiched between CuO planes of complex low dimensional geometry. The temperature-dependent magnetic susceptibilities of La2Cu2O5 and La8Cu7O19 are characteristic of low dimensional Heisenberg antiferromagnets with a low exchange coupling energy.

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U2 - 10.1016/0022-4596(91)90230-F

DO - 10.1016/0022-4596(91)90230-F

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VL - 94

SP - 170

EP - 184

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 1

ER -

A new homologous series of lanthanum copper oxides

Abstract

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