Negative hopping magnetoresistance and dimensional crossover in lightly doped cuprate superconductors (Articolo in rivista)

Type
Label
  • Negative hopping magnetoresistance and dimensional crossover in lightly doped cuprate superconductors (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.76.224512 (literal)
Alternative label
  • Valeri N. Kotov (1); Oleg P. Sushkov (2); M.B. Silva Neto (3); L. Benfatto (4,5); A.H. Castro Neto (1,6) (2007)
    Negative hopping magnetoresistance and dimensional crossover in lightly doped cuprate superconductors
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Valeri N. Kotov (1); Oleg P. Sushkov (2); M.B. Silva Neto (3); L. Benfatto (4,5); A.H. Castro Neto (1,6) (literal)
Pagina inizio
  • 224512 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://journals.aps.org/prb/abstract/10.1103/PhysRevB.76.224512#abstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 76 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Department of Physics, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA (2) School of Physics, University of New South Wales, Sydney 2052, Australia (3) Institut für Theoretische Physik, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany (4) Centro Studi e Ricerche \"Enrico Fermi,\" via Panisperna 89/A, 00184 Rome, Italy (5) CNR-INFM and Department of Physics, University of Rome \"La Sapienza,\" 00185 Rome, Italy (6) Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA (literal)
Titolo
  • Negative hopping magnetoresistance and dimensional crossover in lightly doped cuprate superconductors (literal)
Abstract
  • We show that, due to the weak ferromagnetism of La2-xSrxCuO4, an external magnetic field leads to a dimensional crossover from two to three dimensions for the in-plane transport. The crossover results in an increase of the hole's localization length and hence in a dramatic negative magnetoresistance in the variable range hopping regime. This mechanism quantitatively explains puzzling experimental data on the negative magnetoresistance in the Neel phase of La2-xSrxCuO4. (literal)
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