Investigation of the effect of an external magnetic field on the low-energy spin response of ortho-II ordered YBa2Cu3O6.5
The recent discovery of quantum oscillations in highly ordered ortho-II phase YBa2Cu3O6.5 crystals indicates the existence of a small pocket-like Fermi surface in the ground state of underdoped cuprates which is reached in high magnetic fields. An important task in cuprate research is to clarify the origin of these Fermi surface pockets. Here we propose to investigate the effect of an external magnetic field on the low-energy spin response of fully detwinned and highly ordered ortho-II phase YBa2Cu3O6.5 crystals which are comparable to those samples where quantum oscillations have been found. This will test possible explanations of the origin of the small Fermi pockets.
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LOEW Toshinao; Bourges; HINKOV Vladimir; Dmytro Inosov; IVANOV Alexandre; KEIMER Bernhard; LI Yuan; MANGIN-THRO Lucile; J. T. Park; PORRAS PEREZ GUERRERO Juan Pablo; SIDIS Yvan and WALTERS Andrew Colin. (2013). Investigation of the effect of an external magnetic field on the low-energy spin response of ortho-II ordered YBa2Cu3O6.5. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1185
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