期刊
PHYSICAL REVIEW LETTERS
卷 84, 期 24, 页码 5568-5571出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.84.5568
关键词
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Computational studies of models for manganese oxides show the generation of large coexisting metallic and insulating clusters with equal electronic density, in agreement with the recently discovered micrometer-sized inhomogeneities in manganites. The clusters are induced by disorder on exchange and hopping amplitudes near first-order transitions of the nondisordered strongly coupled system. The random-field Ising model illustrates the qualitative aspects of our results. Percolative characteristics are natural in this context. The conclusions are general and apply to a variety of compounds.
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