Author/Authors :
Endoh، نويسنده , , Y. and Nojiri، نويسنده , , H. and Kaneko، نويسنده , , K. and Hirota، نويسنده , , K. and Fukuda H، نويسنده , , T. and Kimura، نويسنده , , H. and Murakami، نويسنده , , Y. and Ishihara، نويسنده , , S. and Maekawa، نويسنده , , S. and Okamoto، نويسنده , , S. and Motokawa، نويسنده , , M.، نويسنده ,
Abstract :
The gigantic reduction of the electric resistivity under the applied magnetic field, CMR (colossal magneto-resistance ) effect, is now widely accepted to appear in the vicinity of the insulator to metal transition of the perovskite manganites. Recently, we have discovered the first order transition from ferromagnetic metal to insulator in La0.88Sr0.12MnO3 of the CMR manganite. This phase transition induces the tremendous increase of the resistivity under the external magnetic field just near above the phase transition temperature. We report fairly detailed results from the systematic experiments including neutron and synchrotron X-ray scattering studies.
Keywords :
Metal insulator transition , Orbital order , Colossal magneto-resistance manganites , Anisotropic tensor Susceptibility , superexchange , charge order , neutron scattering , Synchrotron X-ray scattering
