Field Induced Transition from Metal to Insulator in the CMR Manganites

Details Field Induced Transition from Metal to Insulator in the CMR Manganites Field Induced Transition from Metal to Insulator in the CMR Manganites

1998-12-27

arxiv.org/abs/cond-mat/9812404v1

Physics

Condensed Matter

Strongly Correlated Electrons

16 pages, 4 ps-figures, to appear in the proceedings of the 7th NEC symposium 'Phase Control in Spin-Charge-Orital Complex Sys

Scientific paper

The gigantic reduction of the electric resistivity under the applied magnetic field, CMR 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 $\rm La_{0.88}Sr_{0.12}MnO_3$ 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 here fairly detailed results from the systematic experiments including neutron and synchrotron X-ray scattering studies.

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