Short-Range Polaron Correlations in the FerromagneticLa1−xCaxMnO3

2000/08/21 by Pengcheng Dai, J. A. Fernandez‐Baca, J. A. Fernandez-Baca +4 · 6 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic and transport properties of perovskites and related materials #Rare-earth and actinide compounds #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.85.2553

4 pages. Accepted for publication in Phys. Rev. Lett

arxiv created 2000/08/21 · openalex publication_date 2000/09/18 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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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