publication . Article . 1997

Large magnetoresistance in intercalated Cu oxides

Grigoryan, L.; Furusawa, M.; Hori, H.; Tokumoto, M.;
Open Access English
  • Published: 01 Dec 1997 Journal: Physical Review B, volume 56, issue 21, pages 13,720-13,723 (issn: 0163-1829, Copyright policy)
  • Publisher: AMERICAN PHYSICAL SOCIETY
Abstract
Magnetism and electrical resistance as a function of magnetic field, temperature, and chemical composition are studied in Cu oxides intercalated with metal phthalocyanines MPc, where M is Fe or Ni, and Pc is C_<32>H_<16>N_<8>. An unusually large positive magnetoresistance (MR) of ~ 1200% is observed in FePc-intercalated Bi_<2>Sr_<2>Ca_<n-1>Cu_<n>O_<2n+4> samples with two Cu-O layers in the unit cell (n=2). The magnitude of the MR decreased to 40% and ~ 0% in the FePc-intercalated n=3 and n=4 samples, respectively, and to ~ 300% in the NiPc-intercalated n=2 sample.
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Article . 1997
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