论文标题
由重电子介导的反铁磁性:单线屏蔽与“高级” rkky
Antiferromagnetism mediated by heavy electrons: singlet shielding vs "high-order" RKKY
论文作者
论文摘要
可以通过与重型电子而不是传导电子的杂交诱导抗铁磁(AF)顺序吗?我们通过典型模型来解决这个有趣的基本问题,以描述当地矩和重电子之间的相互作用。我们发现,可以通过“高阶” ruderman-kittel-kasuya-yosida(rkky)相互作用的机制通过重电子来介导AF顺序。此外,诱导的AF顺序可以与该相图的有限型制度共存,后者与重型电子崩溃并最终与AF订单竞争并最终摧毁了AF订单。讨论了与$ _ {11} $中重型费米亚化合物CE $ _3 $(pt/pd)的潜在相关性。
Can the antiferromagnetic (AF) order be induced via the local moments' hybridization with the heavy electrons instead of conduction electrons? We address this intriguingly fundamental question via a prototypical model to describe the interplay between local moments and heavy electrons. We discover that the AF order can be mediated via the heavy electrons through the mechanism of "high-order" Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction. Moreover, the induced AF order can coexist with its metallicity in a finite regime of the phase diagram, which competes with and ultimately destroys the AF order concurrently with the breakdown of heavy electrons. The potential relevance to the heavy fermion compound Ce$_3$(Pt/Pd)In$_{11}$ is discussed.