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首页> 外文期刊>Philosophical Magazine Letters >Coalescence of the Fermi-surface-related diffuse-intensity peaks in disordered alloys
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Coalescence of the Fermi-surface-related diffuse-intensity peaks in disordered alloys

机译:无序合金中费米表面相关的扩散强度峰的合并

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摘要

The theoretical possibility of the disappearance of the diffuse-intensity peak splitting induced by the Fermi surface in disordered alloys with decreasing temperature is predicted. The underlying mechanism is the compensation of the reciprocal-space curvatures of the self-energy and the interaction. The theory also describes similar results obtained earlier for two low-dimensional models with competing interactions. The coalescence is compared with the recently observed 'thermal' splitting in Pt-V which can be explained in the same way.
机译:预测了在温度降低的情况下,费米表面在无序合金中引起的扩散强度峰分裂消失的理论可能性。潜在的机制是对自能量和相互作用的倒数空间曲率的补偿。该理论还描述了较早获得的具有竞争相互作用的两个低维模型的相似结果。可以将聚结与最近观察到的Pt-V中的“热”分裂进行比较,这可以用相同的方式进行解释。

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