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Volumn 10, Issue 28, 1998, Pages 6405-6416

Fluctuation-induced phase in CsCuCl3 in a transverse magnetic field: Theory

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EID: 0005322150     PISSN: 09538984     EISSN: None     Source Type: Journal    
DOI: 10.1088/0953-8984/10/28/019     Document Type: Article
Times cited : (29)

References (61)
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    • Kawamura, H.1    Miyashita, S.2
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    • Kawamura H and Miyashita S 1984 J. Phys. Soc. Japan 53 4138 Kawamura H and Miyashita S 1985 J. Phys. Soc. Japan 54 4530 Miyashita S and Kawamura H 1985 J. Phys. Soc. Japan 54 3385
    • (1985) J. Phys. Soc. Japan , vol.54 , pp. 3385
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    • note
    • The biquadratic term was used in this manner first in [31, 32]; it has appeared in other contexts, however. For systems with S > 1/2, the term does not necessarily represent fluctuation effects if it appears in the Landau or mean-field energies, as in [40, 41]. It has appeared, even in S = 1/2 systems, in the microscopic analysis of effects due to quantum fluctuations, thermal fluctuations, dilution, and magnetoelastic coupling [42-49], as noted also in [12]: there exists however no microscopic derivation of the term as representing fluctuation effects for an arbitrary spin configuration. In [42-49], the analysis was limited to the LSW level, and the ground state was either known beforehand or selected from known candidates; an unpublished manuscript [46] used the term phenomenologically to estimate wall energies above a known ground state, the coefficient being fitted to numerical LSW results. In contrast, in [31, 32] the term includes fluctuation effects beyond the LSW level, explicitly the reconstruction of the IC ground state. As discussed in the appendix, reference [50] on the stacked TAFM did not consider the term explicitly; it noted however that some effects of fluctuations (explicitly the collinear phase) can be mimicked by allowing some Landau coefficients to depart from the mean-field values, thereby intentionally breaking the classical TAFM degeneracy.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.