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arXiv · 1202.2494

Fermi Surface under Magnetism Instability

Yushu Song·Shu-Qing Guo
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Abstract

In this paper, we study the fermionic excitations near the quantum criticality using gauge/gravity duality. This is motivated by exploring the Fermi surface evolution near the quantum criticality. We construct the gravity dual of "paramagnetic-nematic" phase transition in a continuum limit and study the Fermi surface evolution across this quantum 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 "nematic" phase.

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Yushu Song, Shu-Qing Guo. 2012-07-26. Fermi Surface under Magnetism Instability. https://doi.org/10.1007/jhep07(2012)165

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