Relaxation of a Classical Spin Coupled to a Strongly Correlated Electron System.

A classical spin which is antiferromagnetically coupled to a system of strongly correlated conduction electrons is shown to exhibit unconventional real-time dynamics which cannot be described by Gilbert damping. Depending on the strength of the local Coulomb interaction U, the two main electronic dissipation channels, namely transport of excitations via correlated hopping and via excitations of correlation-induced magnetic moments, become active on largely different time scales. We demonstrate that correlations can lead to a strongly suppressed relaxation which so far has been observed in purely electronic systems only and which is governed here by proximity to the divergent magnetic time scale in the infinite-U limit.

• Publication year

  2016

• Venue

  Physical Review Letters

• Publication date

  2016-02-23

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevLett.117.127201arXiv 1602.07317PMID 27689293
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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