We report measurements of quantum oscillations detected in the putative nematic phase of Sr3Ru2O7. Significant improvements in sample purity enabled the resolution of small amplitude dHvA oscillations between two first order metamagnetic transitions delimiting the phase. Two distinct frequencies were observed, and their amplitudes follow the normal Lifshitz-Kosevich profile. The Fermi surface sheets seem to correspond to a subset of those detected outside the phase. Variations of the dHvA frequencies are explained in terms of a chemical potential shift produced by reaching a peak in the density of states, and an anomalous field dependence of the oscillatory amplitude provides information on domains.
@article{arxiv.0902.3937,
title = {Quantum oscillations in the anomalous phase in Sr3Ru2O7},
author = {J. -F. Mercure and S. K. Goh and E. C. T. O'Farrell and R. S. Perry and M. L. Sutherland and A. Rost and S. A. Grigera and R. A. Borzi and P. Gegenwart and A. P. Mackenzie},
journal= {arXiv preprint arXiv:0902.3937},
year = {2015}
}