On the scaling theory of antiferromagnetic ordering in frustrated Kondo lattices

被引：0
作者：
Irkhin, V. Yu. [1 ,2 ]
机构：
[1] MN Mikheev Inst Met Phys, Ekaterinburg 620108, Russia
[2] Ural Fed Univ, Ekaterinburg 620002, Russia
来源：
PHYSICS LETTERS A | 2020年 / 384卷 / 02期
关键词：
Kondo lattices; Frustrations; Magnetic ordering; FERMI-LIQUID BEHAVIOR; SPIN-WAVE THEORY; MAGNETISM; ELECTRON;
D O I：
10.1016/j.physleta.2019.126062
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A scaling theory of the Kondo lattices with frustrated exchange interactions is developed, criterium of antiferromagnetic ordering being investigated. Depending on the bare model parameters, one or two quantum phase transitions into non-magnetic spin -liquid and Kondo Fermi-liquid ground states can occur with increasing the bare coupling constant. Whereas the renormalization of the magnetic moment in the ordered phase can reach orders of magnitude, spin fluctuation frequency and coupling constant are moderately renormalized in the spin-liquid phase. This justifies application of the scaling approach. (C) 2019 Elsevier B.V. All rights reserved.
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页数：6
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