Determination of valence of Cu in superconducting La2-x(Sr,Ba)xCuO4

E. E. Alp; G. K. Shenoy; D. G. Hinks; D. W. Capone; L. Soderholm; H. B. Schuttler; J. Guo; D. E. Ellis; P. A. Montano; M. Ramanathan

doi:10.1103/PhysRevB.35.7199

Determination of valence of Cu in superconducting La2-x(Sr,Ba)xCuO4

E. E. Alp^*, G. K. Shenoy, D. G. Hinks, D. W. Capone, L. Soderholm, H. B. Schuttler, J. Guo, D. E. Ellis, P. A. Montano, M. Ramanathan

^*Corresponding author for this work

Physics and Astronomy

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Abstract

The measurement of Cu K-edge x-ray absorption near-edge structure of monovalent, divalent, and trivalent copper oxides has been used to identify the presence of different valence of copper in the La2-x(Sr,Ba)xCuO4 (x=0.00.3) system. The results indicate the coexistence of Cu ii and Cu iii states in these compounds. Theoretical calculations based on a cluster of CuO4O2La8LaSr predict the presence of nearly degenerate electronic ground states representing nominally Cu ii and Cu iii configurations.

Original language	English (US)
Pages (from-to)	7199-7202
Number of pages	4
Journal	Physical Review B
Volume	35
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.35.7199
State	Published - 1987

ASJC Scopus subject areas

Condensed Matter Physics

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@article{a693752604f845aba45dee2c0368dbb5,

title = "Determination of valence of Cu in superconducting La2-x(Sr,Ba)xCuO4",

abstract = "The measurement of Cu K-edge x-ray absorption near-edge structure of monovalent, divalent, and trivalent copper oxides has been used to identify the presence of different valence of copper in the La2-x(Sr,Ba)xCuO4 (x=0.00.3) system. The results indicate the coexistence of Cu ii and Cu iii states in these compounds. Theoretical calculations based on a cluster of CuO4O2La8LaSr predict the presence of nearly degenerate electronic ground states representing nominally Cu ii and Cu iii configurations.",

author = "Alp, {E. E.} and Shenoy, {G. K.} and Hinks, {D. G.} and Capone, {D. W.} and L. Soderholm and Schuttler, {H. B.} and J. Guo and Ellis, {D. E.} and Montano, {P. A.} and M. Ramanathan",

year = "1987",

doi = "10.1103/PhysRevB.35.7199",

language = "English (US)",

volume = "35",

pages = "7199--7202",

journal = "Physical Review B",

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TY - JOUR

T1 - Determination of valence of Cu in superconducting La2-x(Sr,Ba)xCuO4

AU - Alp, E. E.

AU - Shenoy, G. K.

AU - Hinks, D. G.

AU - Capone, D. W.

AU - Soderholm, L.

AU - Schuttler, H. B.

AU - Guo, J.

AU - Ellis, D. E.

AU - Montano, P. A.

AU - Ramanathan, M.

PY - 1987

Y1 - 1987

N2 - The measurement of Cu K-edge x-ray absorption near-edge structure of monovalent, divalent, and trivalent copper oxides has been used to identify the presence of different valence of copper in the La2-x(Sr,Ba)xCuO4 (x=0.00.3) system. The results indicate the coexistence of Cu ii and Cu iii states in these compounds. Theoretical calculations based on a cluster of CuO4O2La8LaSr predict the presence of nearly degenerate electronic ground states representing nominally Cu ii and Cu iii configurations.

AB - The measurement of Cu K-edge x-ray absorption near-edge structure of monovalent, divalent, and trivalent copper oxides has been used to identify the presence of different valence of copper in the La2-x(Sr,Ba)xCuO4 (x=0.00.3) system. The results indicate the coexistence of Cu ii and Cu iii states in these compounds. Theoretical calculations based on a cluster of CuO4O2La8LaSr predict the presence of nearly degenerate electronic ground states representing nominally Cu ii and Cu iii configurations.

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U2 - 10.1103/PhysRevB.35.7199

DO - 10.1103/PhysRevB.35.7199

M3 - Article

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EP - 7202

JO - Physical Review B

JF - Physical Review B

IS - 13

ER -

Determination of valence of Cu in superconducting La2-x(Sr,Ba)xCuO4

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