Two-spin superexchange and four-spin cyclic exchange interactions in high Tc superconducting cuprates and isostructural La2NiO4

S. Sugai; M. Sato; T. Itoc; T. Ido; H. Takagi; S. Uchida; T. Kobayashi; J. Akimitsu; Y. Hidaka; T. Murakami; S. Hosoya; T. Kajitani; T. Fukuda

doi:10.1016/S0304-8853(10)80228-8

Two-spin superexchange and four-spin cyclic exchange interactions in high T_c superconducting cuprates and isostructural La₂NiO₄

S. Sugai, M. Sato, T. Itoc, T. Ido, H. Takagi, S. Uchida, T. Kobayashi, J. Akimitsu, Y. Hidaka, T. Murakami, S. Hosoya, T. Kajitani, T. Fukuda

Research output: Contribution to journal › Article › peer-review

Abstract

Raman spectra in the antiferromagnetic insulator phases of s = 1/2 high T_c 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.

Original language	English
Pages (from-to)	631-632
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	90-91
DOIs	https://doi.org/10.1016/S0304-8853(10)80228-8
Publication status	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Sugai, S., Sato, M., Itoc, T., Ido, T., Takagi, H., Uchida, S., Kobayashi, T., Akimitsu, J., Hidaka, Y., Murakami, T., Hosoya, S., Kajitani, T., & Fukuda, T. (1990). Two-spin superexchange and four-spin cyclic exchange interactions in high T_c superconducting cuprates and isostructural La₂NiO₄. Journal of Magnetism and Magnetic Materials, 90-91, 631-632. https://doi.org/10.1016/S0304-8853(10)80228-8

Two-spin superexchange and four-spin cyclic exchange interactions in high T_c superconducting cuprates and isostructural La₂NiO₄. / Sugai, S.; Sato, M.; Itoc, T.; Ido, T.; Takagi, H.; Uchida, S.; Kobayashi, T.; Akimitsu, J.; Hidaka, Y.; Murakami, T.; Hosoya, S.; Kajitani, T.; Fukuda, T.

In: Journal of Magnetism and Magnetic Materials, Vol. 90-91, 1990, p. 631-632.

Research output: Contribution to journal › Article › peer-review

Sugai, S, Sato, M, Itoc, T, Ido, T, Takagi, H, Uchida, S, Kobayashi, T, Akimitsu, J, Hidaka, Y, Murakami, T, Hosoya, S, Kajitani, T & Fukuda, T 1990, 'Two-spin superexchange and four-spin cyclic exchange interactions in high T_c superconducting cuprates and isostructural La₂NiO₄', Journal of Magnetism and Magnetic Materials, vol. 90-91, pp. 631-632. https://doi.org/10.1016/S0304-8853(10)80228-8

Sugai, S. ; Sato, M. ; Itoc, T. ; Ido, T. ; Takagi, H. ; Uchida, S. ; Kobayashi, T. ; Akimitsu, J. ; Hidaka, Y. ; Murakami, T. ; Hosoya, S. ; Kajitani, T. ; Fukuda, T. / Two-spin superexchange and four-spin cyclic exchange interactions in high T_c superconducting cuprates and isostructural La₂NiO₄. In: Journal of Magnetism and Magnetic Materials. 1990 ; Vol. 90-91. pp. 631-632.

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AU - Sato, M.

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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.

PY - 1990

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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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