论文标题

增强了$ d $ - 波配对和反铁磁性的趋势,在掺杂的周期性的Anderson模型中

Enhanced tendency of $d$-wave pairing and antiferromagnetism in doped staggered periodic Anderson model

论文作者

Jiang, Mi

论文摘要

与其均匀的对应物相比,在不均匀系统中是否可以增强物理特性是一个有趣的基本问题。我们通过发现掺杂交错的周期性的安德森模型(PAM)以及两个交替的不同于的本地时刻的抗磁性(AF)结构因子和$ d $ - 波配对趋势的显着增强,并提供了一个具有积极答案的具体示例。发现这些增强的共同线程源自均匀PAM中相应物理量的通用“自我平衡”效应和非单调依赖性。更引人注目的是,我们通过暂定相图提供了这两个增强的共存的证据。我们的发现可能意味着在通用不均匀系统中增强物理特性的合理概括。

Whether or not a physical property can be enhanced in an inhomogeneous system compared with its homogeneous counterpart is an intriguing fundamental question. We provide a concrete example with positive answer by uncovering a remarkable enhancement of both antiferromagnetic (AF) structure factor and $d$-wave pairing tendency in the doped staggered periodic Anderson model (PAM) with two alternating inequivalent local moments. The common thread of these enhancement is found to originate from the generic "self-averaging" effect and non-monotonic dependence of the corresponding physical quantity in homogeneous PAM. More strikingly, we provided evidence of the coexistence of these two enhancement via a tentative phase diagram. Our findings may imply the plausible generalization of enhancing physical properties in generic inhomogeneous systems.

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