Fermi Surface under Magnetism Instability

Details Fermi Surface under Magnetism Instability Fermi Surface under Magnetism Instability

2012-02-12

arxiv.org/abs/1202.2494v3

Physics

High Energy Physics

High Energy Physics - Theory

17pages,2 figures, discussion added; terminology corrected

Scientific paper

In this paper, we study the fermionic excitations near the quantum criticality using gauge/gravity duality. This is motivated by exploring the non-Fermi liquid behavior under quantum phase transition. Following the procedure of Liu, McGreevy and Vegh, we construct the gravity dual of "paramagnetic-ferromagnetic" transition in a continuum limit and study the non-Fermi liquid behavior under the phase transition. We find that there exists non-Fermi liquid with the Fermi surface in the "paramagnetic" phase and the Fermi surface disappears in the "ferromagnetic" phase.

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