Spin susceptibility of spin-1/2 fermions with dipole interactions

Benjamin M. Fregoso; Eduardo Fradkin

Spin susceptibility of spin-1/2 fermions with dipole interactions

ORAL

Abstract

The general form of the spin susceptibility is found for spin- 1/2 fermions with dipole interactions. In the paramagnetic phase and partially magnetized phase (ferro-nematic) the spin susceptibility is explicitly computed in the Random Phase Approximation. Important modifications to the static susceptibility are discussed which are relevant for future experiments. Unconventional collective modes in the paramagnetic and ferro-nematic phases are also discussed.

March 23, 2011, 5:42 PM – March 23, 2011, 5:54 PM

Authors

Benjamin M. Fregoso

James Franck Institute and Department of Physics, University of Chicago, University of Chicago
Eduardo Fradkin

UIUC, Department of Physics, University of Illinois, University of Illinois at Urbana-Champaign