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Thermal transport in a spin-1/2 Heisenberg chain coupled to a magnetic or nonmagnetic impurity (CROSBI ID 166962)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Metavitsiadis, Alexandros ; Zotos, Xenophon ; Barišić, Osor Slaven ; Prelovšek, Peter Thermal transport in a spin-1/2 Heisenberg chain coupled to a magnetic or nonmagnetic impurity // Physical review. B, Condensed matter and materials physics, 81 (2010), 205101-1-205101-6. doi: 10.1103/PhysRevB.81.205101

Podaci o odgovornosti

Metavitsiadis, Alexandros ; Zotos, Xenophon ; Barišić, Osor Slaven ; Prelovšek, Peter

engleski

Thermal transport in a spin-1/2 Heisenberg chain coupled to a magnetic or nonmagnetic impurity

We explore the effect of a (non-)magnetic impurity on the thermal transport of the spin-1/2 Heisenberg chain model. This unique system allows to probe Kondo-type phenomena in a prototype strongly correlated system. Using numerical diagonalization techniques we study the scaling of the frequency dependent thermal conductivity with system size and host-impurity coupling strength as well as the dependence on temperature. We focus in particular on the analysis of “cutting healing” of weak links or a magnetic impurity by the host chain via Kondo-like screening as the temperature is lowered.

thermal transport; Heisenberg chain; Kondo

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Podaci o izdanju

81

2010.

205101-1-205101-6

objavljeno

1098-0121

10.1103/PhysRevB.81.205101

Povezanost rada

Fizika

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