# Magnetic effects in a holographic Fermi-like liquid

**Authors:** Niko Jokela, Gilad Lifschytz, Matthew Lippert  
**arXiv:** [1204.3914](https://arxiv.org/abs/1204.3914)  
**Date:** 2012-04-17  
**Summary page:** https://www.summarizepaper.com/en/paper/1204.3914v1/

## Abstract

We explore the magnetic properties of the Fermi-like liquid represented by the D3-D7' system. The system exhibits interesting magnetic properties such as ferromagnetism and an anomalous Hall effect, which are due to the Chern-Simons term in the effective gravitational action. We investigate the spectrum of quasi-normal modes in the presence of a magnetic field and show that the magnetic field mitigates the instability towards a striped phase. In addition, we find a critical magnetic field above which the zero sound mode becomes massive.