Itinerant Ferromagnetism in Ultracold Fermi Gases

    Research output: Contribution to journalJournal articleResearchpeer-review

    287 Downloads (Pure)

    Abstract

    Itinerant ferromagnetism in cold Fermi gases with repulsive interactions is studied applying the Jastrow-Slater approximation generalized to finite polarization and temperature. For two components at zero temperature a second order transition is found at akF ≃ 0.90 compatible with QMC.
    Thermodynamic functions and observables such as the compressibility and spin susceptibility and the resulting fluctuations in number and spin are calculated. For trapped gases the resulting cloud radii and kinetic energies are calculated and compared to recent experiments. Spin polarized systems
    are recommended for effective separation of large ferromagnetic domains. Collective modes are predicted and tri-critical points are calculated for multi-component systems.
    Original languageEnglish
    JournalPhysical Review A
    Volume83
    Issue number053635
    Number of pages8
    ISSN2469-9926
    DOIs
    Publication statusPublished - 2012

    Fingerprint

    Dive into the research topics of 'Itinerant Ferromagnetism in Ultracold Fermi Gases'. Together they form a unique fingerprint.

    Cite this