Underscreened Kondo impurities in a Luttinger liquid

Details Underscreened Kondo impurities in a Luttinger liquid Underscreened Kondo impurities in a Luttinger liquid

2006-07-10

arxiv.org/abs/cond-mat/0607237v3

Phys. Rev. B 74, 205304 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 1 figure, final version

Scientific paper

10.1103/PhysRevB.74.205304

We study the problem of underscreened Kondo physics in an interacting electronic system modeled by a Luttiger Liquid (LL). We find that the leading temperature dependence of thermodynamical quantities like the specific heat, spin susceptibility are Fermi Liquid like in nature. However, anomalous power law exponents are seen in the subleading terms. We also discuss possible realizations through single and double quantum dot configurations coupled to LL leads and its consequences for electronic transport. The leading low temperature transport behavior is seen to exhibit in general, non Fermi liquid LL behavior unlike the thermodynamical quantities.

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