论文标题
交错周期性模型中增强的防铁磁有序趋势
Enhanced antiferromagnetic ordering tendency in staggered periodic Anderson model
论文作者
论文摘要
由两个或多个不等的局部矩位置组成的重型费米亚化合物是一个有前途的平台，可以在常规系统中不存在一个仅包含每个单位电池的稀有地球离子的近孔筛选之间的相互作用。我们报告了交错周期性的安德森模型（PAM）中的抗铁磁性（AF）有序趋势的显着增强，如果它们的杂交强度驻留在杂种单线和反铁磁绝缘子方案中，则具有两个交替的不相等的局部矩，并将其杂交强度分开。我们的结果揭示了由多个能量尺度在交错的PAM中的相互作用引起的丰富物理学，此外，这意味着在一般不均匀系统中，物理量增强的无处不在。
Heavy fermion compounds consisting of two or more inequivalent local moment sites per unit cell have been a promising platform of investigating the interplay between distinct Kondo screenings that is absent in the conventional systems containing only one rare-earth ion per unit cell. We report a remarkable enhancement of the antiferromagnetic (AF) ordering tendency in the staggered periodic Anderson model (PAM) with two alternating inequivalent local moments if their hybridization strengths reside in the Kondo singlet and antiferromagnetic insulator regime separately of the phase diagram of homogeneous PAM. Our results uncover the rich physics induced by the interplay of multiple energy scales in the staggered PAM and furthermore implies the ubiquitous existence of the enhancement of physical quantities in general inhomogeneous systems.
