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Volumn 59, Issue 9, 1999, Pages 6282-6293

Low-temperature thermodynamic properties of molecular magnetic chains

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Indexed keywords


EID: 0001171767     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.6282     Document Type: Article
Times cited : (31)

References (30)
  • 1
    • 85038900192 scopus 로고    scopus 로고
    • Magnetic Molecular Materials, edited by D. Gatteschi et al., NATO ASI Series E, Vol. 198 (Kluwer, Dordrecht, 1991)
    • Magnetic Molecular Materials, edited by D. Gatteschi et al., NATO ASI Series E, Vol. 198 (Kluwer, Dordrecht, 1991).
  • 10
    • 0011585038 scopus 로고
    • J. Villain, in Chiral Order in Helimagnets, Proceedings of the 13th IUPAP Conference on Statistical Physics, edited by C. Weil, D. Cabib, C. G. Kuper, and I. Riess [Ann. Isr. Phys. Soc.2, 565 (1978)].
    • (1978) Ann. Isr. Phys. Soc. , vol.2 , pp. 565
    • Villain, J.1
  • 12
    • 85038933893 scopus 로고    scopus 로고
    • Numerical calculations of the intrachain dipolar interactions [R. Sessoli and L. Ammannato (unpublished)] in one-dimensional helimagnets show that an (Formula presented)-type anisotropy is favored for sufficiently high values of the helix pitch, i.e., for dominant (Formula presented) antiferromagnetic interaction
    • Numerical calculations of the intrachain dipolar interactions [R. Sessoli and L. Ammannato (unpublished)] in one-dimensional helimagnets show that an (Formula presented)-type anisotropy is favored for sufficiently high values of the helix pitch, i.e., for dominant (Formula presented) antiferromagnetic interaction.
  • 17
    • 85038908088 scopus 로고    scopus 로고
    • More precisely, the paramagnetic contribution was estimated by extrapolating the Curie-Weiss fitting law, valid in the low-temperature range (Formula presented) to the higher temperatures (Formula presented) where the anomaly appears
    • More precisely, the paramagnetic contribution was estimated by extrapolating the Curie-Weiss fitting law, valid in the low-temperature range (Formula presented) to the higher temperatures (Formula presented) where the anomaly appears.
  • 20
    • 85038890205 scopus 로고    scopus 로고
    • To obtain the molar specific heat one must observe that a mole of the compound contains (Formula presented) molecules (Formula presented)=Avogadro’s number), thus (Formula presented) spins: (Formula presented) Gd ions and (Formula presented) organic radicals. In the classical limit, each spin contributes to the specific heat with (Formula presented) since it has two degrees of freedom in the Heisenberg model, so that (Formula presented) for (Formula presented)
    • To obtain the molar specific heat one must observe that a mole of the compound contains (Formula presented) molecules (Formula presented)=Avogadro’s number), thus (Formula presented) spins: (Formula presented) Gd ions and (Formula presented) organic radicals. In the classical limit, each spin contributes to the specific heat with (Formula presented) since it has two degrees of freedom in the Heisenberg model, so that (Formula presented) for (Formula presented)
  • 24
    • 0000740919 scopus 로고
    • J. Phys. Soc. Jpn.H. Kawamura56, 474 (1987);
    • (1987) , vol.56 , pp. 474
    • Kawamura, H.1


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