RT Journal Article T1 Lattice-spin mechanism in colossal magnetoresistive manganites A1 Vergés, J. A. A1 Martín Mayor, Víctor A1 Brey, L. AB 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. PB American Physical Society SN 0031-9007 YR 2002 FD 2002-04-01 LK https://hdl.handle.net/20.500.14352/60321 UL https://hdl.handle.net/20.500.14352/60321 LA eng NO © 2002 American Physical Society. We are grateful to F. Guinea, J. L. Alonso, and S. Fratini for discussions. Financial support is acknowledged from Grants No. PB96-0085 (MEC, Spain) and CAM-07N/0008/2001 (Madrid, Spain). V. M-M. is partially supported by E.C. Contract No. HPMF-CT2000-00450. NO Ministerio de Educación y Ciencia (MEC) NO Comunidad de Madrid NO European Commission DS Docta Complutense RD 10 abr 2025