Short-range polaron correlations in the ferromagnetic La(1-x)Ca(x)MnO(3)

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(x)MnO(3)

Strongly Correlated Electrons 2009-10-31 v1

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

View on arXiv ↗ PDF ↗ DOI ↗

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 $_x$ MnO $_3$ in the Ca doping range $0.15\leq x\leq 0.3$ . 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.

Keywords

neutron scattering polaron correlations La$_{1-x}$Ca$_x$MnO$_3$ lattice polarons transport properties

Cite

@article{arxiv.cond-mat/0008303,
  title  = {Short-range polaron correlations in the ferromagnetic La(1-x)Ca(x)MnO(3)},
  author = {Pengcheng Dai and J. A. Fernandez-Baca and N. Wakabayashi and E. W. Plummer and Y. Tomioka and Y. Tokura},
  journal= {arXiv preprint arXiv:cond-mat/0008303},
  year   = {2009}
}

Comments

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

Related papers

View all related →

Materials Science · Physics

Diffuse Neutron Scattering Study of Magnetic Correlations in half-doped La0.5Ca0.5-xSrxMnO3 (x = 0.1, 0.3 and 0.4) Manganites