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, Lynn Schneemeyer, H. W. Zandbergen

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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.

Original languageEnglish
Pages (from-to)170-184
Number of pages15
JournalJournal of Solid State Chemistry
Volume94
Issue number1
DOIs
StatePublished - 1 Jan 1991

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Lanthanum oxides
lanthanum oxides
Copper oxides
copper oxides
Lanthanum
Exchange coupling
Magnetic susceptibility
lanthanum
Electron microscopy
cuprates
ribbons
electron microscopy
Crystal structure
Oxygen
magnetic permeability
Temperature
crystal structure
temperature
Geometry
air

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Cava, R. J., Siegrist, T., Hessen, B., Krajewski, J. J., Peck, W. F., Batlogg, B., ... Zandbergen, H. W. (1991). A new homologous series of lanthanum copper oxides. Journal of Solid State Chemistry, 94(1), 170-184. https://doi.org/10.1016/0022-4596(91)90230-F
Cava, R. J. ; Siegrist, T. ; Hessen, B. ; Krajewski, J. J. ; Peck, W. F. ; Batlogg, B. ; Takagi, H. ; Waszczak, J. V. ; Schneemeyer, Lynn ; Zandbergen, H. W. / A new homologous series of lanthanum copper oxides. In: Journal of Solid State Chemistry. 1991 ; Vol. 94, No. 1. pp. 170-184.
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Cava, RJ, Siegrist, T, Hessen, B, Krajewski, JJ, Peck, WF, Batlogg, B, Takagi, H, Waszczak, JV, Schneemeyer, L & Zandbergen, HW 1991, 'A new homologous series of lanthanum copper oxides', Journal of Solid State Chemistry, vol. 94, no. 1, pp. 170-184. https://doi.org/10.1016/0022-4596(91)90230-F

A new homologous series of lanthanum copper oxides. / Cava, R. J.; Siegrist, T.; Hessen, B.; Krajewski, J. J.; Peck, W. F.; Batlogg, B.; Takagi, H.; Waszczak, J. V.; Schneemeyer, Lynn; Zandbergen, H. W.

In: Journal of Solid State Chemistry, Vol. 94, No. 1, 01.01.1991, p. 170-184.

Research output: Contribution to journalArticleResearchpeer-review

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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, Lynn

AU - Zandbergen, H. W.

PY - 1991/1/1

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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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Cava RJ, Siegrist T, Hessen B, Krajewski JJ, Peck WF, Batlogg B et al. A new homologous series of lanthanum copper oxides. Journal of Solid State Chemistry. 1991 Jan 1;94(1):170-184. https://doi.org/10.1016/0022-4596(91)90230-F