论文标题
昆多晶格效应usbte中异常大厅效应的缩放关系的分解
Breakdown of the scaling relation of anomalous Hall effect in Kondo lattice ferromagnet USbTe
论文作者
论文摘要
强相关与浆果曲率之间的相互作用是量子材料领域的开放区域。在这里，我们报告了在低温下以固有的浆果曲率为主的近野晶格铁磁体USBTE中大型异常的霍尔电导率。但是，浆果曲率诱导的异常霍尔效应并不遵循从费米液体理论得出的缩放关系。浆果曲率贡献的发作与昆多相干温度一致。结合ARPES的测量和DMFT计算，这强烈表明浆果曲率是由Fermi水平的近代杂交诱导的平坦谱带托管的。我们的结果表明，平坦带的近调相干性对与浆果曲率相关的低温物理特性产生了巨大影响，呼吁对异常霍尔效应的缩放关系进行新的理论，以说明强相关与浆果曲率之间的相互作用。
The interaction between strong correlation and Berry curvature is an open territory of in the field of quantum materials. Here we report large anomalous Hall conductivity in a Kondo lattice ferromagnet USbTe which is dominated by intrinsic Berry curvature at low temperatures. However, the Berry curvature induced anomalous Hall effect does not follow the scaling relation derived from Fermi liquid theory. The onset of the Berry curvature contribution coincides with the Kondo coherent temperature. Combined with ARPES measurement and DMFT calculations, this strongly indicates that Berry curvature is hosted by the flat bands induced by Kondo hybridization at the Fermi level. Our results demonstrate that the Kondo coherence of the flat bands has a dramatic influence on the low temperature physical properties associated with the Berry curvature, calling for new theories of scaling relations of anomalous Hall effect to account for the interaction between strong correlation and Berry curvature.
