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Volumn 32, Issue 3, 2003, Pages 315-322

Antiferromagnetism of almost localized fermions: Evolution from Slater-type to Mott-Hubbard gap

Author keywords

[No Author keywords available]

Indexed keywords

ANTIFERROMAGNETISM; GROUND STATE; MAGNETIC PROPERTIES; MOLECULAR DYNAMICS; PARAMAGNETISM;

EID: 4544260726     PISSN: 14346028     EISSN: 14346036     Source Type: Journal    
DOI: 10.1140/epjb/e2003-00104-9     Document Type: Article
Times cited : (27)

References (46)
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  • 3
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    • The stability of AF in the present context (i.e. in the Gutzwiller approximation) has been obtained in: K. Kubo, M. Uchinami, Prog. Theor. Phys. 54, 1289 (1975).
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    • see also: G. Seibold et al., Phys. Rev. B 57, 6937 (1998).
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    • The phase diagram recovering both HF and strong correlation limits correctly has been discussed in G. Kotliar, A.E. Ruckenstein, Phys. Rev. Lett. 57, 1362 (1986) - within the slave-boson approach;
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  • 9
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    • The corresponding discussion in two-spatial dimensions was performed in: E. Arrigoni, G.C. Strinati, Phys. Rev. B 44, 7455 (1991);
    • (1991) Phys. Rev. B , vol.44 , pp. 7455
    • Arrigoni, E.1    Strinati, G.C.2
  • 11
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    • In that respect the AF stability should be considered for ≠ 1 against the onset of the ferromagnetism, for which the Pauli principle plays the same role as U → ∞ for antiferromagnetism. However, in the large-U limit, the virtual hopping processes, particularly for n = 1, lead to a stable AF state; see e.g. J. Spałek, A.M. Oleś, K.A. Chao, Phys. Stat. Solidi (b) 108, 329 (1981).
    • (1981) Phys. Stat. Solidi (b) , vol.108 , pp. 329
    • Spałek, J.1    Oleś, A.M.2    Chao, K.A.3
  • 12
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    • Cf. also: K.A. Chao, J. Spałek, A.M. Oleś, J. Phys. C 10, L271 (1977), where the effective kinetic exchange has been derived in the W/U ≪ 1 limit for an arbitrary n.
    • (1977) J. Phys. C , vol.10
    • Chao, K.A.1    Spałek, J.2    Oleś, A.M.3
  • 13
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    • Asymptotic values of the magnetic moment and the molecular-field parameter ßare discussed in: B. Möller et al., J. Phys. Cond. Matt. 5, 4847 (1993).
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  • 15
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    • Phys. Rev. B ibid. 57, 12041 (1998)
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    • T. Li et al., Phys. Rev. B 40, 6817 (1989);
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    • W. Ziegler et al., in reference [1]
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    • For the comparison the men-field slave-boson and the quantum Monte-Carlo approaches see: L. Lilly et al., Phys. Rev. Lett. 65, 1379 (1990)
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    • Lilly, L.1
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    • The Gaussian fluctuations in PAR.A state are treated in reference [6], and in: P. Wölfle, T. Li, Z. Phys. 78, 45 (1990);
    • (1990) Z. Phys. , vol.78 , pp. 45
    • Wölfle, P.1    Li, T.2
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    • These effects are considered mainly in the context of large-U situation for a two dimentional case, cf. e.g. P. Wróbel, R. Eder, Phys. Rev. B 58, 15160 (1998),
    • (1998) Phys. Rev. B , vol.58 , pp. 15160
    • Wróbel, P.1    Eder, R.2
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    • and references therein; cf. also: M. Imada et al., Rev. Mod. Phys. 70, 1039 (1998)
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  • 46
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    • Ph.D. thesis (Jagiellonian University - Kraków, unpublished)
    • P. Korbel, Ph.D. thesis (Jagiellonian University - Kraków, unpublished)
    • Korbel, P.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.