Magnetic quantum oscillations in YBa2Cu3O6.61 and YBa2Cu3O6.69 in fields of up to 85 T: patching the hole in the roof of the superconducting dome.

We measure magnetic quantum oscillations in the underdoped cuprates YBa2Cu3O6+x with x=0.61, 0.69, using fields of up to 85 T. The quantum-oscillation frequencies and effective masses obtained suggest that the Fermi energy in the cuprates has a maximum at hole doping p approximately 0.11-0.12. On ei...

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Bibliographic Details
Main Authors: Singleton, J, de la Cruz, C, McDonald, R, Li, S, Altarawneh, M, Goddard, P, Franke, I, Rickel, D, Mielke, C, Yao, X, Dai, P
Format: Journal article
Language:English
Published: 2010