磁扰动纳米结构中的Kondo筛选：稳定非费米液相的精确结果
强关联电子
2007-05-23 v3
摘要
Triangular symmetry stabilizes a novel non-Fermi-liquid phase in the three-impurity Kondo model with frustrating antiferromagnetic interactions between half-integer impurity spins. The phase arises without fine-tuning of couplings, and is stable against magnetic fields and particle-hole symmetry breaking. We find a conformal field theory describing this phase, verify it using the numerical renormalization group, and extract various exact, universal low-energy properties. Signatures predicted in electrical transport may be testable in scanning tunneling microscopy or quantum-dot experiments.
引用
@article{arxiv.cond-mat/0505303,
title = {Kondo screening in a magnetically frustrated nanostructure: Exact results on a stable, non-Fermi-liquid phase},
author = {Kevin Ingersent and Andreas W. W. Ludwig and Ian Affleck},
journal= {arXiv preprint arXiv:cond-mat/0505303},
year = {2007}
}
备注
4 pages, published version (shortened, minor corrections)