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Studies on Magnetic Excitation Spectra of High-Tc Superconductors
Masafumi Ito, Yukio Yasui, Satoshi Iikubo +6
Magnetic excitation spectra c"(q,w) of YBa2Cu3Oy, La2-xSrxCuO4, La2-y-xNdySrxCuO4 and Nd2-xCexCuO4 are compared with those of model calculations, where q and w are the wave vector…
Magnetic Structures and Spin States of NdBaCo2O5
Minoru Soda, Yukio Yasui, Masafumi Ito +3
Neutron diffraction studies have been carried out on a single crystal of oxygen-deficient perovskite NdBaCo2O5 in the temperature range of 7-370 K. There have been observed, with d…
Spin-Glass-like Transition and Hall Resistivity of Y2-xBixIr2O7
Natsuki Aito, Minoru Soda, Yoshiaki Kobayashi +1
Various physical properties of the pyrochlore oxide Y2-xBixIr2O7 have been studied. The magnetizations M measured under the conditions of the zero-field-cooling(ZFC) and the field-…
Transport and Magnetic Properties of R1-xAxCoO3 (R=La, Pr and Nd; A=Ba, Sr and Ca)
Hiroyasu Masuda, Toshiaki Fujita, Takeshi Miyashita +4
Transport and magnetic measurements have been carried out on perovskite Co-oxides R1-xAxCoO3 (R=La, Pr, and Nd; A=Ba, Sr and Ca; 0<x<0.5: All sets of the R and A species except Nd1…
Effects of "Stripes" on the Magnetic Excitation Spectra of La1.48Nd0.4Sr0.12CuO4
Masafumi Ito, Yukio Yasui, Satoshi Iikubo +4
The wave vector(q)- and energy(w)-dependent magnetic excitation spectra c"(q,w), have been studied in the temperature(T) range of 10 K<T<150 K on single crystals of La1.48Nd0.4Sr0.…
Magnetic Structures of High Temperature Phases of TbBaCo2O5.5
Minoru Soda, Yukio Yasui, Toshiaki Fujita +3
Neutron diffraction studies have been carried out on a single crystal of oxygen-deficient perovskite TbBaCo2O5.5 in the temperature range of 7-370 K. There have been observed sever…