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Dresden 2003 – scientific programme

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TT: Tiefe Temperaturen

TT 19: Supraleitung: Elektronenstruktur, Phononen, Tunneln, Ordnungsparameter II

TT 19.3: Talk

Thursday, March 27, 2003, 15:00–15:15, HSZ301

Shifts of the nuclear resonance in the vortex lattice in YBa2Cu3O7 — •Klaus Morawetz2, Pavel Lipavský1, Jan Koláček1, and Ernst Helmut Brandt31Institute of Physics, Academy of Sciences, Cukrovarnická 10, 16258 Praha 6, Czech Republic — 2Max-Planck-Institute for the Physics of Complex Systems, Noethnitzer Str. 38, 01187 Dresden, Germany — 3Max-Planck-Institut für Metallforschung, D-70506 Stuttgart, Germany

The NMR and NQR spectra of 63Cu in the CuO2 plane of YBa2Cu3O7 in the superconducting state are discussed in terms of the phenomenological theory of Ginzburg-Landau type extended to lower temperatures. We show that the observed spectra, Kumagai et al., PRB 63, 144502 (2001), can be explained by a standard theory of the Bernoulli potential with the charge transfer between CuO2 planes and CuO chains assumed.

[1] P. Lipavský, J. Koláček, K. Morawetz and E. H. Brandt, Phys. Rev. B 65, 144511 (2002), Phys. Rev. B 66, 134525 (2002)

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