Quantum Oscillations in the Anomalous Phase in Sr<sub>3</sub>Ru<sub>2</sub>O<sub>7</sub>

We report measurements of quantum oscillations detected in the putative nematic phase of Sr<sub>3</sub>Ru<sub>2</sub>O<sub>7</sub>. Improvements in sample purity enabled the resolution of small amplitude de Haas--van Alphen (dHvA) oscillations between two first or...

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Detalles Bibliográficos
Autores principales: Mercure, Jean-Francois, Goh, Swee K., O'Farrell, Eoin, Perry, Robin, Sutherland, Mike, Rost, Andreas W., Grigera, Santiago Andrés, Borzi, Rodolfo Alberto, Gegenwart, Philipp, Mackenzie, Andrew P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Exactas
Física
quantum oscillations
metamagnetic transitions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126423
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:We report measurements of quantum oscillations detected in the putative nematic phase of Sr<sub>3</sub>Ru<sub>2</sub>O<sub>7</sub>. 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.

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