Short-range polaron correlations in the ferromagnetic La1 − xCaxMnO3

Pengcheng Dai; J. A. Fernandez-Baca; N. Wakabayashi; E. W. Plummer; Y. Tomioka; Y. Tokura

doi:10.1103/PhysRevLett.85.2553

Short-range polaron correlations in the ferromagnetic La_{1 − x}Ca_xMnO₃

Pengcheng Dai, J. A. Fernandez-Baca, N. Wakabayashi, E. W. Plummer, Y. Tomioka, Y. Tokura

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Abstract

We use neutron scattering to demonstrate the presence of lattice polarons and their short-range correlations for several samples of La_{1 − x}Ca_xMnO₃ in the Ca doping range 0.15 ≤ x ≤0.3. We establish the doping dependence of the orientation, commensuration, and coherence length of the polaron correlations and show that the populations of correlated and uncorrelated polarons are intimately related to the transport properties of the materials.

Original language	English
Pages (from-to)	2553-2556
Number of pages	4
Journal	Physical Review Letters
Volume	85
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.85.2553
State	Published - Sep 18 2000

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abstract = "We use neutron scattering to demonstrate the presence of lattice polarons and their short-range correlations for several samples of La1 − xCaxMnO3 in the Ca doping range 0.15 ≤ x ≤0.3. We establish the doping dependence of the orientation, commensuration, and coherence length of the polaron correlations and show that the populations of correlated and uncorrelated polarons are intimately related to the transport properties of the materials.",

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AU - Dai, Pengcheng

AU - Fernandez-Baca, J. A.

AU - Wakabayashi, N.

AU - Plummer, E. W.

AU - Tomioka, Y.

AU - Tokura, Y.

PY - 2000/9/18

Y1 - 2000/9/18

N2 - We use neutron scattering to demonstrate the presence of lattice polarons and their short-range correlations for several samples of La1 − xCaxMnO3 in the Ca doping range 0.15 ≤ x ≤0.3. We establish the doping dependence of the orientation, commensuration, and coherence length of the polaron correlations and show that the populations of correlated and uncorrelated polarons are intimately related to the transport properties of the materials.

AB - We use neutron scattering to demonstrate the presence of lattice polarons and their short-range correlations for several samples of La1 − xCaxMnO3 in the Ca doping range 0.15 ≤ x ≤0.3. We establish the doping dependence of the orientation, commensuration, and coherence length of the polaron correlations and show that the populations of correlated and uncorrelated polarons are intimately related to the transport properties of the materials.

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Short-range polaron correlations in the ferromagnetic La_{1 − x}Ca_xMnO₃

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