Marginal behavior of a Fermi system interacting with bosonic excitations

Renormalization-group approach of itinerant electron systems near the Lifshitz point

“…The occurrence of the non-Fermi behavior in the systems of fermions coupled to a critical fluctuations mode has been suggested in connection with the neutron experiments 1,2 and studied in the framework of many body theory 3,4 in the case of two-dimensional (2D) and three dimensional (3D) models.…”