Renormalization group approach of itinerant electron systems near the Lifshitz point

Abstract

Using the renormalization approach proposed by Millis for the itinerant electron systems we calculated the specific heat coefficient $\gamma (T)$ for the magnetic fluctuations with susceptibility ${\chi }^{-1}\sim |\delta +\omega {|}^{\alpha }+f(q)$ near the Lifshitz point. The constant value obtained for $\alpha =4/5$ and the logarithmic temperature dependence, specific for the non-Fermi behavior, have been obtained in agreement with the experimental dat.

6 pages, Revtex

References in corpus (5)

• Two-dimensional fluctuations at the quantum-critical point of CeCu_{6-x}Au_x
• Scaling of magnetic fluctuations near a quantum phase transition
• Theories of non-Fermi liquid behavior in heavy fermions
• Quantum Lifshitz Point
• Universality in Heavy Fermions Revisited