三维半磁性金属与二维非磁性金属的相似性：弱无序区的输运
Analogy between Three-Dimensional Helimagnetic Metals and Two-Dimensional Nonmagnetic Metals: Transport in the Weak-Disorder Regime
摘要：
我们提出了一个准粒子模型，允许一个简单的描述金属helimagnets的电子特性。对于弱的淬火无序，我们发现三维材料的电导率与温度的线性关系。这让人想起了二维系统的行为，并反映了大体积helimagnets的某些属性有效地出现二维的一般趋势。这种效应的符号与二维材料相反。这些令人惊讶的预测应该在弱helimagnets中观察到。
英文摘要：
We present a quasi-particle model that allows for a simple description of the electronic properties of metallic helimagnets. For weak quenched disorder, we find a leading linear temperature dependence of the electrical conductivity for 3-d materials. This is reminiscent of the behavior of nonmagnetic 2-d systems, and reflects a general tendency of certain properties of bulk helimagnets to appear effectively 2-d. The sign of the effect is opposite to that in nonmagnetic 2-d materials. These surprising predictions should be observable in weak helimagnets.
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