Percolation mechanism for Colossal Magnetoresistance

1996/10/22 by Paul J. M. Bastiaansen, Bastiaansen, Paul J. M., Hubert J. F. Knops +2
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Condensed Matter (cond-mat) #FOS: Physical sciences #Theoretical and Computational Physics #cond-mat #nanoparticles nucleation surface interactions

paper · pdf · doi:10.48550/arxiv.cond-mat/9610162

7 pages, REVTeX, 4 figures included

arxiv created 1996/10/22 · openalex publication_date 1996/10/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We argue that colossal magnetoresistance is a critical phenomenon and propose a mechanism to describe it. The mechanism relies on the halfmetallic behavior of the materials showing colossal magnetoresistance, and yields a correlated percolation model that, we argue, captures all qualitative features of colossal magnetoresistance, above as well as below the Curie temperature. The model only serves for revealing the underlying mechanism of colossal magnetoresistance, and does not aim to reproduce precise, numerical results.

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