Abstract
A many-electron theory is proposed for exchange and tunneling levels of dimeric mixed-valence clusters. Transition-metal ions are examined, and it is established that the parameters of the Heisenberg and double-exchange interactions depend on the configuration of the dn-electronic states. Temperature dependences are constructed for the effective magnetic moments and the electronic heat capacity.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
D. B. Brown (ed.). Mixed-Valence Compounds, Riedel, Dordrecht (1979).
V. I. Gol'danskii, V. R. Alekseev, V. A. Stukan, et al., “Mossbauer spectroscopic investigation of temporary delocalization of electron in acetate cluster of mixed-valence iron,” Dokl. Akad. Nauk SSSR, 213, No. 4, 867–870 (1973).
C. Zener, “Interaction between the d-shells in the transition metals. 2. Ferromagnetic compounds of manganese with perovskite structure,” Phys. Rev., 82, No. 3, 403–405 (1951).
P. W. Anderson and H. Hasegawa, “Consideration on double exchange,” Phys. Rev., 100, No. 2, 675–681 (1955).
P.-G. De Gennes, “Effects of double exchange in magnetic crystals,” Phys. Rev., 118, No. 1, 141–154 (1960).
B. V. Karpenko, “Some new aspects of the theory of the double exchange mechanism,” J. Magn. Magn. Mater., 3, 267–274 (1976).
K. Kubo and N. A. Ohata, “Quantum theory of double exchange (1),” J. Phys. Soc. Jpn., 33, No. 1, 21–32 (1972).
M. Ceiplak, “Localized model for system with double-exchange coupling,” Phys. Rev. B, 18, No. 7, 3470–3485 (1978).
D. Emin and N. L. H. Liu, “Small-polaron hopping in magnetic semiconductors,” Phys. Rev. B, 27, No. 8, 4788–4798 (1983).
S. A. Borshch, I. N. Kotov, and I. B. Bersuker, “Double exchange in mixed-valence clusters,” Khim. Fiz., 3, No. 5, 667–671 (1984).
M. I. Belinskii and B. S. Tsukerblat, “Energy spectrum of exchange clusters of mixed-valence d-ions,” Fiz. Tverd. Tela., 26, No. 3, 753–764 (1984).
M. I. Belinskii, B. S. Tsukerblat, and N. V. Gerbeleu, “Exchange interaction and electron transfer in variable-valence clusters,” Fiz. Tverd. Tela., 25, No. 3, 869–871 (1983).
R. L. Martin, “Metal-metal interaction in paramagnetic clusters,” in: Physical Methods of Investigation and the Properties of Organic Compounds [Russian translation], Mir, Moscow (1970), pp. 293–347.
B. S. Tsukerblat and M. I. Belinskii, “Vibronic reduction effects in d1 — d2 mixed-valence clusters,” Fiz. Tverd. Tela., 25, No. 11, 3512–3514 (1983).
S. A. Borshch, I. N. Kotov, and I. B. Bersuker, “A vibronic model for exchange-coupled mixed-valence dimers,” Chem. Phys. Lett., 111, No. 3, 264–270 (1984).
M. Drillion, G. Pourroy, and I. Darriet, “Electronic and vibronic coupling in a mixed-valence dimeric unit d1 — d2: magnetic aspects,” Chem. Phys., 88, No. 1, 27–37 (1984).
Author information
Authors and Affiliations
Additional information
Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 23, No. 2, pp. 148–157, March–April, 1987.
Rights and permissions
About this article
Cite this article
Belinskii, M.I., Tsukerblat, B.S., Botsan, I.G. et al. Electronic structure and thermodynamic properties of dimeric mixed-valence clusters. Theor Exp Chem 23, 141–149 (1987). https://doi.org/10.1007/BF00534573
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00534573