NMR study of local structure in metallic La2CuO4+δ

P. C. Hammel; A. P. Reyes; S. W. Cheong; Z. Fisk; J. E. Schirber

doi:10.1103/PhysRevLett.71.440

NMR study of local structure in metallic La2CuO4+δ

P. C. Hammel, A. P. Reyes, S. W. Cheong, Z. Fisk, J. E. Schirber

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Abstract

We employ La139 NMR spectroscopy as a structural probe of metallic La2CuO4+δ. We find a distribution of lateral displacements of the oxygen atoms which form the apices of the oxygen octahedra. We directly observe a wide distribution of structures of the La-O layer; this distribution is strongly temperature dependent. We present copper NQR spectra which reveal a second, unexplained, copper site in the CuO2 planes. We show that these features are not manifestations of disturbances of the lattice by interstitial dopants, but are the intrinsic response of La2CuO4+δ to doped holes.

Original language	English (US)
Pages (from-to)	440-443
Number of pages	4
Journal	Physical review letters
Volume	71
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.71.440
State	Published - 1993
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.71.440

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title = "NMR study of local structure in metallic La2CuO4+δ",

abstract = "We employ La139 NMR spectroscopy as a structural probe of metallic La2CuO4+δ. We find a distribution of lateral displacements of the oxygen atoms which form the apices of the oxygen octahedra. We directly observe a wide distribution of structures of the La-O layer; this distribution is strongly temperature dependent. We present copper NQR spectra which reveal a second, unexplained, copper site in the CuO2 planes. We show that these features are not manifestations of disturbances of the lattice by interstitial dopants, but are the intrinsic response of La2CuO4+δ to doped holes.",

author = "Hammel, {P. C.} and Reyes, {A. P.} and Cheong, {S. W.} and Z. Fisk and Schirber, {J. E.}",

year = "1993",

doi = "10.1103/PhysRevLett.71.440",

language = "English (US)",

volume = "71",

pages = "440--443",

journal = "Physical Review Letters",

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T1 - NMR study of local structure in metallic La2CuO4+δ

AU - Hammel, P. C.

AU - Reyes, A. P.

AU - Cheong, S. W.

AU - Fisk, Z.

AU - Schirber, J. E.

PY - 1993

Y1 - 1993

N2 - We employ La139 NMR spectroscopy as a structural probe of metallic La2CuO4+δ. We find a distribution of lateral displacements of the oxygen atoms which form the apices of the oxygen octahedra. We directly observe a wide distribution of structures of the La-O layer; this distribution is strongly temperature dependent. We present copper NQR spectra which reveal a second, unexplained, copper site in the CuO2 planes. We show that these features are not manifestations of disturbances of the lattice by interstitial dopants, but are the intrinsic response of La2CuO4+δ to doped holes.

AB - We employ La139 NMR spectroscopy as a structural probe of metallic La2CuO4+δ. We find a distribution of lateral displacements of the oxygen atoms which form the apices of the oxygen octahedra. We directly observe a wide distribution of structures of the La-O layer; this distribution is strongly temperature dependent. We present copper NQR spectra which reveal a second, unexplained, copper site in the CuO2 planes. We show that these features are not manifestations of disturbances of the lattice by interstitial dopants, but are the intrinsic response of La2CuO4+δ to doped holes.

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DO - 10.1103/PhysRevLett.71.440

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SP - 440

EP - 443

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

ER -

NMR study of local structure in metallic La2CuO4+δ

Abstract

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