Interchain interactions and magnetic properties of (formula presented)

Physical Review B - Condensed Matter and Materials Physics

Volumn 60, Issue 9, 1999, Pages 6230-6233

  Mizuno, Y ^a   Tohyama, T ^a   Maekawa, S ^a  

^a TOHOKU UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001607104     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.60.6230     Document Type: Article

References (14)

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12. In the (Formula presented) cluster, (Formula presented) and (Formula presented) are defined. Since (Formula presented) at (Formula presented) is equivalent to that at (Formula presented), we show only the results with (Formula presented).
13. The experiment shows a gap due to anisotropy of magnetic interactions (Ref. 5). We have checked the effect of the anisotropy on (Formula presented), and confirmed that the feature of the spectral structure is unchanged except the opening of a small gap.
14. Because the minimum exists at (Formula presented), it has been concluded that (Formula presented) is AFM and (Formula presented) is FM (Ref. 5). We also calculated (Formula presented) for the case that (Formula presented) is AFM and (Formula presented) is FM. In this case, the intensity at (Formula presented) becomes much larger than those at other momenta, which suggests that the spectrum at (Formula presented) should be observed distinctly. However, the experimental data show rather large error bars for the dispersion along the chain (Ref. 5).