de Haas-van Alphen oscillations in the underdoped cuprate YBa$_2$Cu$_3$O$_{6.5}$

C. Jaudet; D. Vignolles; A. Audouard; J. Levallois; D. LeBoeuf; N. Doiron-Leyraud; B. Vignolle; M. Nardone; A. Zitouni; R. Liang; D. A. Bonn; W. N. Hardy; L. Taillefer; C. Proust

doi:10.1103/physrevlett.100.187005

arXiv · 0711.3559

de Haas-van Alphen oscillations in the underdoped cuprate YBa$_2$Cu$_3$O$_{6.5}$

C. Jaudet·D. Vignolles·A. Audouard·J. Levallois·D. LeBoeuf·N. Doiron-Leyraud·B. Vignolle·M. Nardone·A. Zitouni·R. Liang·D. A. Bonn·W. N. Hardy·L. Taillefer·C. Proust

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Abstract

The de Haas-van Alphen effect was observed in the underdoped cuprate YBa$_2$Cu$_3$O$_{6.5}$ via a torque technique in pulsed magnetic fields up to 59 T. Above an irreversibility field of $\sim$30 T, the magnetization exhibits clear quantum oscillations with a single frequency of 540 T and a cyclotron mass of 1.76 times the free electron mass, in excellent agreement with previously observed Shubnikov-de Haas oscillations. The oscillations obey the standard Lifshitz-Kosevich formula of Fermi-liquid theory. This thermodynamic observation of quantum oscillations confirms the existence of a well-defined, close and coherent, Fermi surface in the pseudogap phase of cuprates.

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C. Jaudet, D. Vignolles, A. Audouard, J. Levallois, D. LeBoeuf, N. Doiron-Leyraud, B. Vignolle, M. Nardone, A. Zitouni, R. Liang, D. A. Bonn, W. N. Hardy, L. Taillefer, C. Proust. 2008-05-13. de Haas-van Alphen oscillations in the underdoped cuprate YBa$_2$Cu$_3$O$_{6.5}$. https://doi.org/10.1103/physrevlett.100.187005

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