Document Detail


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.
MedLine Citation:
PMID:  20366955     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
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 either side, the effective mass may diverge, possibly due to phase transitions associated with the T=0 limit of the metal-insulator crossover (low-p side), and the postulated topological transition from small to large Fermi surface close to optimal doping (high p side).
Authors:
John Singleton; Clarina de la Cruz; R D McDonald; Shiliang Li; Moaz Altarawneh; Paul Goddard; Isabel Franke; Dwight Rickel; C H Mielke; Xin Yao; Pengcheng Dai
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Publication Detail:
Type:  Journal Article     Date:  2010-02-25
Journal Detail:
Title:  Physical review letters     Volume:  104     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-04-06     Completed Date:  2010-06-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  086403     Citation Subset:  -    
Affiliation:
National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS-E536, Los Alamos, New Mexico 87545, USA.
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