Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms

  title={Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms},
  author={Gyu-Boong Jo and Ye-Ryoung Lee and Jae H. Choi and Caleb A. Christensen and Tony Hyun Kim and Joseph H. Thywissen and David E. Pritchard and Wolfgang Ketterle},
  pages={1521 - 1524}
Cold Atom Magnetism Magnetic ordering arises from the strong interactions between atoms, with its origins deeply rooted in quantum mechanics. How the ordering comes about, however, has long been a topic of debate because most condensed-matter systems are limited by a somewhat fixed parameter space. Cold atom systems, by comparison, provide the ability to tune the magnitude and sign of the atom-atom interaction, as well as the density. Jo et al. (p. 1521; see the Perspective by Zwerger) exploit… 

Itinerant Ferromagnetism with Ultracold Atoms

Evidence for an analog of ferromagnetism in an ultracold gas of neutral lithium-6 atoms is provided and when repulsive interactions between these freely moving particles are sufficiently strong, a transition to ferromagnetic ordering is seen.

Progress in Year 2009

  • Physics
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