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Title: Low energy properties of the Kondo chain in the RKKY regime

Journal Article · · New Journal of Physics
 [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Ludwig Maximilians Univ., Munich (Germany); Univ. Erlangen-Nurnberg, Erlangen (Germany)

We study the Kondo chain in the regime of high spin concentration where the low energy physics is dominated by the Ruderman–Kittel–Kasuya–Yosida interaction. As has been recently shown (Tsvelik and Yevtushenko 2015 Phys. Rev. Lett. 115 216402), this model has two phases with drastically different transport properties depending on the anisotropy of the exchange interaction. In particular, the helical symmetry of the fermions is spontaneously broken when the anisotropy is of the easy plane type. This leads to a parametrical suppression of the localization effects. In the present paper we substantially extend the previous theory, in particular, by analyzing a competition of forward- and backward- scattering, including into the theory short range electron interactions and calculating spin correlation functions. In conclusion, we discuss applicability of our theory and possible experiments which could support the theoretical findings.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1255724
Report Number(s):
BNL-112205-2016-JA; R&D Project: PO015; KC0202030
Journal Information:
New Journal of Physics, Vol. 18, Issue 5; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (6)

Doped Kondo chain, a heavy Luttinger liquid journal April 2018
Symmetry-protected topological phase transition in one-dimensional Kondo lattice and its realization with ultracold atoms journal October 2017
Kondo Impurities Coupled to a Helical Luttinger Liquid: RKKY-Kondo Physics Revisited journal April 2018
Kondo Impurities Coupled to Helical Luttinger Liquid: RKKY-Kondo Physics Revisited text January 2017
Doped Kondo chain, a heavy Luttinger liquid text January 2017
Correlations and incipient antiferromagnetic order within the linear Mn chains of metallic Ti$_4$MnBi$_2$ text January 2020