Itinerant ferromagnetism in an atomic Fermi gas: Influence of population imbalance - Condensed Matter > Strongly Correlated ElectronsReport as inadecuate




Itinerant ferromagnetism in an atomic Fermi gas: Influence of population imbalance - Condensed Matter > Strongly Correlated Electrons - Download this document for free, or read online. Document in PDF available to download.

Abstract: We investigate ferromagnetic ordering in an itinerant ultracold atomic Fermigas with repulsive interactions and population imbalance. In a spatiallyuniform system, we show that at zero temperature the transition to theitinerant magnetic phase transforms from first to second order with increasingpopulation imbalance. Drawing on these results, we elucidate the phases presentin a trapped geometry, finding three characteristic types of behavior withchanging population imbalance. Finally, we outline the potential experimentalimplications of the findings.



Author: G.J. Conduit, B.D. Simons

Source: https://arxiv.org/







Related documents