INVESTIGADORES
BORZI Rodolfo Alberto
artículos
Título:
Quantum Oscillations in the Anomalous Phase in Sr3Ru2O7
Autor/es:
J.-F. MERCURE; S. K. GOH; E. C. T. O'FARRELL; R. S. PERRY; M. L. SUTHERLAND; A. W. ROST; S. A. GRIGERA; R. A. BORZI; P. GEGENWART; A. P. MACKENZIE
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Año: 2009 vol. 103 p. 1764011 - 1764014
ISSN:
0031-9007
Resumen:
We report measurements of quantum oscillations detected in the putative nematic phase of Sr3 Ru2 O7. Improvements in sample purity enabled the resolution of small amplitude de Haasvan 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 ondomains.