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  • Title: Lattice-spin mechanism in colossal magnetoresistive manganites.
    Author: Vergés JA, Martín-Mayor V, Brey L.
    Journal: Phys Rev Lett; 2002 Apr 01; 88(13):136401. PubMed ID: 11955111.
    Abstract:
    We present a single-orbital double-exchange model, coupled with cooperative phonons (the so called breathing modes of the oxygen octahedra in manganites). The model is studied with Monte Carlo simulations. For a finite range of doping and coupling constants, a first-order metal-insulator phase transition is found, which coincides with the paramagnetic-ferromagnetic phase transition. The insulating state is due to the self-trapping of every carrier within an oxygen octahedron distortion.
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