Prof. D. Arčon (UL FMF & IJS): Dynamics in low-dimensional antiferromagnets

Date of publication: 2. 1. 2020

Monday physics colloquium

Ponedeljek, 6.1.2020, ob 16:15 v predavalnici F1, Jadranska 19

Prof. D. Arčon (UL FMF & IJS):

Dynamics in low-dimensional antiferromagnets

Povzetek / Abstract:

In quantum magnetism, the paradigm model is the one-dimensional S = 1/2 Heisenberg model that has no long-range order, but the spin-spin correlations are not short-ranged. Over the years, many compounds comprising weakly coupled spin chains have been discovered. Despite the apparent simplicity, they yield remarkably complex phases and non-trivial low-energy dynamics, which reflect one-dimensional physics in the presence of weak magnetic anisotropies, inter-chain couplings and geometrical frustrations. In this talk I will present our comprehensive experimental approach based on magnetic resonance and neutron scattering techniques on several model compounds where a crossover from the Tomonaga-Luttinger liquid physics to the three-dimensional ordered states have been studied as a function of temperature and magnetic field.

Predavanje bo v angleščini / Lecture will be held in English

Ponedeljek, 6.1.2020, ob 16:15, v predavalnici F1 na Jadranski 19

Ob 16:00 vabimo udeležence na čaj