LaCuO
                        25+x
                         and YCuO
                        2.5+x
                         delafossites: Materials with triangular Cu
                        2+δ
                         planes

Robert Joseph Cava; H. W. Zandbergen; A. P. Ramirez; H. Takagi; C. T. Chen; J. J. Krajewski; W. F. Peck; J. V. Waszczak; G. Meigs; R. S. Roth; L. F. Schneemeyer

doi:10.1006/jssc.1993.1179

LaCuO _25+x and YCuO _2.5+x delafossites: Materials with triangular Cu ^2+δ planes

Robert Joseph Cava, H. W. Zandbergen, A. P. Ramirez, H. Takagi, C. T. Chen, J. J. Krajewski, W. F. Peck, J. V. Waszczak, G. Meigs, R. S. Roth, L. F. Schneemeyer

Research output: Contribution to journal › Article › peer-review

140 Scopus citations

Abstract

The YCuO ₂ and LaCuO ₂ delafossites consist of alternating triangular planes of Ln ³⁺ octahedra and O-Cu ¹⁺ -O sticks. Here it is shown that under a limited set of conditions they may be oxidized to form new delafossite-derived phases YCuO _2.5+x , 0 ≤ x ≤ 0.05, and LaCuO _25+x , 0.07 ≤ x ≤ 0.18. Electron microscopy and powder X-ray diffraction are employed to characterize the resulting structures. Temperature-dependent resistivities and magnetic susceptibilities are reported. Characterization by soft X-ray photoabsorbtion spectroscopy, which shows them to be electronically unlike cuprates such as La _2-x Sr _x CuO ₄ , is also reported.

Original language	English (US)
Pages (from-to)	437-452
Number of pages	16
Journal	Journal of Solid State Chemistry
Volume	104
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1993.1179
State	Published - Jan 1 1993
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1006/jssc.1993.1179

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Cava, R. J., Zandbergen, H. W., Ramirez, A. P., Takagi, H., Chen, C. T., Krajewski, J. J., Peck, W. F., Waszczak, J. V., Meigs, G., Roth, R. S., & Schneemeyer, L. F. (1993). LaCuO _25+x and YCuO _2.5+x delafossites: Materials with triangular Cu ^2+δ planes. Journal of Solid State Chemistry, 104(2), 437-452. https://doi.org/10.1006/jssc.1993.1179

Cava, Robert Joseph ; Zandbergen, H. W. ; Ramirez, A. P. et al. / LaCuO _25+x and YCuO _2.5+x delafossites : Materials with triangular Cu ^2+δ planes. In: Journal of Solid State Chemistry. 1993 ; Vol. 104, No. 2. pp. 437-452.

@article{9b9709e6690049258afcbf5dc4e219ed,

title = "LaCuO 25+x and YCuO 2.5+x delafossites: Materials with triangular Cu 2+δ planes",

abstract = " The YCuO 2 and LaCuO 2 delafossites consist of alternating triangular planes of Ln 3+ octahedra and O-Cu 1+ -O sticks. Here it is shown that under a limited set of conditions they may be oxidized to form new delafossite-derived phases YCuO 2.5+x , 0 ≤ x ≤ 0.05, and LaCuO 25+x , 0.07 ≤ x ≤ 0.18. Electron microscopy and powder X-ray diffraction are employed to characterize the resulting structures. Temperature-dependent resistivities and magnetic susceptibilities are reported. Characterization by soft X-ray photoabsorbtion spectroscopy, which shows them to be electronically unlike cuprates such as La 2-x Sr x CuO 4 , is also reported.",

author = "Cava, {Robert Joseph} and Zandbergen, {H. W.} and Ramirez, {A. P.} and H. Takagi and Chen, {C. T.} and Krajewski, {J. J.} and Peck, {W. F.} and Waszczak, {J. V.} and G. Meigs and Roth, {R. S.} and Schneemeyer, {L. F.}",

year = "1993",

month = jan,

day = "1",

doi = "10.1006/jssc.1993.1179",

language = "English (US)",

volume = "104",

pages = "437--452",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "2",

}

Cava, RJ, Zandbergen, HW, Ramirez, AP, Takagi, H, Chen, CT, Krajewski, JJ, Peck, WF, Waszczak, JV, Meigs, G, Roth, RS & Schneemeyer, LF 1993, 'LaCuO _25+x and YCuO _2.5+x delafossites: Materials with triangular Cu ^2+δ planes', Journal of Solid State Chemistry, vol. 104, no. 2, pp. 437-452. https://doi.org/10.1006/jssc.1993.1179

LaCuO _25+x and YCuO _2.5+x delafossites: Materials with triangular Cu ^2+δ planes. / Cava, Robert Joseph; Zandbergen, H. W.; Ramirez, A. P. et al.
In: Journal of Solid State Chemistry, Vol. 104, No. 2, 01.01.1993, p. 437-452.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - LaCuO 25+x and YCuO 2.5+x delafossites

T2 - Materials with triangular Cu 2+δ planes

AU - Cava, Robert Joseph

AU - Zandbergen, H. W.

AU - Ramirez, A. P.

AU - Takagi, H.

AU - Chen, C. T.

AU - Krajewski, J. J.

AU - Peck, W. F.

AU - Waszczak, J. V.

AU - Meigs, G.

AU - Roth, R. S.

AU - Schneemeyer, L. F.

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The YCuO 2 and LaCuO 2 delafossites consist of alternating triangular planes of Ln 3+ octahedra and O-Cu 1+ -O sticks. Here it is shown that under a limited set of conditions they may be oxidized to form new delafossite-derived phases YCuO 2.5+x , 0 ≤ x ≤ 0.05, and LaCuO 25+x , 0.07 ≤ x ≤ 0.18. Electron microscopy and powder X-ray diffraction are employed to characterize the resulting structures. Temperature-dependent resistivities and magnetic susceptibilities are reported. Characterization by soft X-ray photoabsorbtion spectroscopy, which shows them to be electronically unlike cuprates such as La 2-x Sr x CuO 4 , is also reported.

AB - The YCuO 2 and LaCuO 2 delafossites consist of alternating triangular planes of Ln 3+ octahedra and O-Cu 1+ -O sticks. Here it is shown that under a limited set of conditions they may be oxidized to form new delafossite-derived phases YCuO 2.5+x , 0 ≤ x ≤ 0.05, and LaCuO 25+x , 0.07 ≤ x ≤ 0.18. Electron microscopy and powder X-ray diffraction are employed to characterize the resulting structures. Temperature-dependent resistivities and magnetic susceptibilities are reported. Characterization by soft X-ray photoabsorbtion spectroscopy, which shows them to be electronically unlike cuprates such as La 2-x Sr x CuO 4 , is also reported.

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ER -

Cava RJ, Zandbergen HW, Ramirez AP, Takagi H, Chen CT, Krajewski JJ et al. LaCuO _25+x and YCuO _2.5+x delafossites: Materials with triangular Cu ^2+δ planes. Journal of Solid State Chemistry. 1993 Jan 1;104(2):437-452. doi: 10.1006/jssc.1993.1179

LaCuO _25+x and YCuO _2.5+x delafossites: Materials with triangular Cu ^2+δ planes

Abstract

All Science Journal Classification (ASJC) codes

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