Vir. J. Appl. Supercond. / Volume 18 / Issue 5 / MATERIALS IMPORTANT FOR APPLICATIONS

Magnetic Quantum Oscillations in YBa₂Cu₃O_6.61 and YBa₂Cu₃O_6.69 in Fields of Up to 85 T: Patching the Hole in the Roof of the Superconducting Dome

Source: Phys. Rev. Lett. 104, 086403 (2010); doi:10.1103/PhysRevLett.104.086403

Published 25 February 2010

ABSTRACT

^* Full Text: Access via Source Journal Abstract

PACS

71.18.+y
Fermi surface: calculations and measurements; effective mass, -g factor
71.45.-d
Collective effects (condensed matter electronic structure)
74.72.-h
Cuprate superconductors
YEAR: 2010

PUBLICATION DATA

Publisher:

APS

John Singleton,¹ Clarina de la Cruz,^2,3 R. D. McDonald,¹ Shiliang Li,^4,2 Moaz Altarawneh,¹ Paul Goddard,⁵ Isabel Franke,⁵ Dwight Rickel,¹ C. H. Mielke,¹ Xin Yao,⁶ and Pengcheng Dai^2,3,4
¹National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS-E536, Los Alamos, New Mexico 87545, USA
²Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200, USA
³Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
⁴Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
⁵Clarendon Laboratory, Department of Physics, Oxford University, Oxford, United Kingdom OX1 3PU
⁶Department of Physics, Shanghai Jiao Tong University, Shanghai 200030, China

Wemeasure magnetic quantum oscillations in the underdoped cuprates YBa₂Cu₃O_6+x withx=0.61, 0.69, using fields of up to 85 T. The quantum-oscillationfrequencies and effective masses obtained suggest that the Fermi energyin the cuprates has a maximum at hole doping p [approximate]

0.11–0.12.On either side, the effective mass may diverge, possibly dueto phase transitions associated with the T=0 limit of themetal-insulator crossover (low-p side), and the postulated topological transition fromsmall to large Fermi surface close to optimal doping (highp side). ©2010 The American Physical Society

History:	Received 12 November 2009; published 25 February 2010
Permalink:	http://link.aps.org/abstract/PRL/v104/e086403

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Magnetic Quantum Oscillations in YBa₂Cu₃O_6.61 and YBa₂Cu₃O_6.69 in Fields of Up to 85 T: Patching the Hole in the Roof of the Superconducting Dome

Source: Phys. Rev. Lett. 104, 086403 (2010); doi:10.1103/PhysRevLett.104.086403

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Source: Phys. Rev. Lett. 104, 086403 (2010); doi:10.1103/PhysRevLett.104.086403

Interpreting quantum oscillation experiments on underdoped YBa₂Cu₃O_6+x

Magnetic Quantum Oscillations in YBa₂Cu₃O_6.61 and YBa₂Cu₃O_6.69 in Fields of Up to 85 T: Patching the Hole in the Roof of the Superconducting Dome