Journal
EPL
Volume 82, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/82/17004
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The magnetic-field-induced antiferromagnetic phase of the underdoped cuprates is studied within the t-t'-J model. A magnetic field suppresses the pairing amplitude, which, in turn, may induce antiferromagnetism. We apply our theory to interpret the recently reported quantum oscillations in high magnetic field in ortho-II YBa2Cu3O6.5 [1] and propose that the total hole density abstracted from the oscillation period is reduced by 50% due to doubling of the unit cell. Copyright (c) EPLA, 2008.
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