Mercure, J.-F.J.-F.MercureGoh, S. K.S. K.GohO’Farrell, E. C. T.E. C. T.O’FarrellPerry, R. S.R. S.PerrySutherland, M. L.M. L.SutherlandRost, A. W.A. W.RostGrigera, S. A.S. A.GrigeraBorzi, R. A.R. A.BorziGegenwart, PhilippPhilippGegenwartMackenzie, A. P.A. P.Mackenzie2018-11-072018-11-072009https://resolver.sub.uni-goettingen.de/purl?gro-2/56134We report measurements of quantum oscillations detected in the putative nematic phase of Sr3Ru2O7. Improvements in sample purity enabled the resolution of small amplitude de Haas-van Alphen (dHvA) oscillations between two first order metamagnetic transitions delimiting the phase. Two distinct frequencies were observed, whose amplitudes follow the normal Lifshitz-Kosevich profile. 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.journal_article10.1103/PhysRevLett.103.17640119905773000271164500041