Indications of Intrinsic Chemical and Structural Inhomogeneity in Lightly Doped [Formula presented]

Tomohiro Shibata; Bruce Bunker; J. F. Mitchell; Peter Schiffer

doi:10.1103/PhysRevLett.88.207205

Indications of Intrinsic Chemical and Structural Inhomogeneity in Lightly Doped [Formula presented]

Tomohiro Shibata, Bruce Bunker, J. F. Mitchell, Peter Schiffer

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

4 Scopus citations

Abstract

X-ray absorption fine structure measurements of the Sr and La K edges of the solid solution [Formula presented] reveal a consistent deviation from a random distribution of Sr at the La/Sr sites for [Formula presented]. Local structural disorder on the cation sublattice in the low-x samples is also observed to differ in the vicinity of the La-rich and Sr-rich clusters. The local clustering and structural disorder establish an intrinsic chemical as well as structural inhomogeneity on the nanometer scale, which may provide a mechanism for the nucleation of magnetoelectronic phase separation.

Original language	English (US)
Article number	207205
Pages (from-to)	4
Number of pages	1
Journal	Physical review letters
Volume	88
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.88.207205
State	Published - 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.88.207205

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abstract = "X-ray absorption fine structure measurements of the Sr and La K edges of the solid solution [Formula presented] reveal a consistent deviation from a random distribution of Sr at the La/Sr sites for [Formula presented]. Local structural disorder on the cation sublattice in the low-x samples is also observed to differ in the vicinity of the La-rich and Sr-rich clusters. The local clustering and structural disorder establish an intrinsic chemical as well as structural inhomogeneity on the nanometer scale, which may provide a mechanism for the nucleation of magnetoelectronic phase separation.",

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AU - Shibata, Tomohiro

AU - Bunker, Bruce

AU - Mitchell, J. F.

AU - Schiffer, Peter

PY - 2002

Y1 - 2002

N2 - X-ray absorption fine structure measurements of the Sr and La K edges of the solid solution [Formula presented] reveal a consistent deviation from a random distribution of Sr at the La/Sr sites for [Formula presented]. Local structural disorder on the cation sublattice in the low-x samples is also observed to differ in the vicinity of the La-rich and Sr-rich clusters. The local clustering and structural disorder establish an intrinsic chemical as well as structural inhomogeneity on the nanometer scale, which may provide a mechanism for the nucleation of magnetoelectronic phase separation.

AB - X-ray absorption fine structure measurements of the Sr and La K edges of the solid solution [Formula presented] reveal a consistent deviation from a random distribution of Sr at the La/Sr sites for [Formula presented]. Local structural disorder on the cation sublattice in the low-x samples is also observed to differ in the vicinity of the La-rich and Sr-rich clusters. The local clustering and structural disorder establish an intrinsic chemical as well as structural inhomogeneity on the nanometer scale, which may provide a mechanism for the nucleation of magnetoelectronic phase separation.

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Indications of Intrinsic Chemical and Structural Inhomogeneity in Lightly Doped [Formula presented]

Abstract

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