TY - JOUR
T1 - Two-spin superexchange and four-spin cyclic exchange interactions in high Tc superconducting cuprates and isostructural La2NiO4
AU - Sugai, S.
AU - Sato, M.
AU - Itoc, T.
AU - Ido, T.
AU - Takagi, H.
AU - Uchida, S.
AU - Kobayashi, T.
AU - Akimitsu, J.
AU - Hidaka, Y.
AU - Murakami, T.
AU - Hosoya, S.
AU - Kajitani, T.
AU - Fukuda, T.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - Raman spectra in the antiferromagnetic insulator phases of s = 1/2 high Tc superconducting cuprates were compared with s = 1 La2NiO4. The anomalous magnon spectra in cuprates suggest that the four-spin cyclic exchange interactions are very large. The doped carriers in cuprates show non-Fermi liquid behavior.
AB - Raman spectra in the antiferromagnetic insulator phases of s = 1/2 high Tc superconducting cuprates were compared with s = 1 La2NiO4. The anomalous magnon spectra in cuprates suggest that the four-spin cyclic exchange interactions are very large. The doped carriers in cuprates show non-Fermi liquid behavior.
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U2 - 10.1016/S0304-8853(10)80228-8
DO - 10.1016/S0304-8853(10)80228-8
M3 - Article
AN - SCOPUS:0025658804
VL - 90-91
SP - 631
EP - 632
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
ER -