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...
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/126423 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126423 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciencias Exactas Física quantum oscillations metamagnetic transitions |
| 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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