Abstract
Possible variants of the Mott-Hubbard phase transitions at high pressure in systems with spin crossovers are considered. Owing to the universal character of the dependence of the effective Hubbard parameter U eff(d n) on the average number of d electrons, which is determined by the presence of spin crossovers, cascades of insulator-metal-insulator phase transitions in systems with d 3, d 6, and d 8 configurations become possible. Moreover, the systems with d 6 configuration can exhibit transitions from a metal in the absence of external pressure to an insulator at high pressure.
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References
N. F. Mott, Metal-Insulator Transitions (Taylor and Francis, London, 1974).
J. C. Hubbard, Proc. R. Soc. London, Ser. A 276, 238 (1963).
V. V. Val’kov and S. G. Ovchinnikov, Quasiparticles in Strongly Correlated Systems (Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 2001) [in Russian].
J. Zaanen and G. A. Sawatzky, J. Solid State Chem. 88, 8 (1990).
J. Zaanen, G. A. Sawatzky, and J. W. Allen, Phys. Rev. Lett. 55, 418 (1985).
Y. Tanabe and S. Sugano, J. Phys. Soc. Jpn. 9, 753 (1954).
I. S. Lyubutin and A. G. Gavriliuk, Phys.—Usp. 52(10), 989 (2009).
S. G. Ovchinnikov, JETP 107(1), 140 (2008).
I. S. Lyubutin, S. G. Ovchinnikov, A. G. Gavriliuk, and V. V. Struzhkin, Phys. Rev. B: Condens. Matter 79, 085125 (2009).
S. G. Ovchinnikov, V. I. Anisimov, I. A. Nekrasov, and Z. V. Pchelkina, Phys. Met. Metallogr. 99 (Suppl. 1), 93 (2005).
J. C. Hubbard, Proc. R. Soc. London, Ser. A 281, 401 (1964).
B. Velicky, S. Kirkpatrik, and H. Ehrenreich, Phys. Rev. B: Condens. Matter 175, 747 (1968).
R. O. Zaitsev, Sov. Phys. JETP 43 (3), 574 (1976).
A. Georges, G. Kotliar, W. Krauth, and M. Rozenberg, Rev. Mod. Phys. 68, 13 (1996).
T. Maier, M. Jarrell, T. Pruschke, and M. N. Hettler, Rev. Mod. Phys. 77, 1027 (2005).
H. Hafermann, S. Brener, A. N. Rubtsov, M. I. Katsnelson, and A. I. Lichtenstein, JETP Lett. 86(10), 677 (2007).
H. Park, K. Haule, and G. Kotliar, Phys. Rev. Lett. 101, 186403 (2008).
S. G. Ovchinnikov, JETP Lett. 94(3), 192 (2011).
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Original Russian Text © S.G. Ovchinnikov, 2013, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2013, Vol. 143, No. 1, pp. 141–146.
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Ovchinnikov, S.G. Analysis of the sequence of insulator-metal phase transitions at high pressure in systems with spin crossovers. J. Exp. Theor. Phys. 116, 123–127 (2013). https://doi.org/10.1134/S1063776113010111
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DOI: https://doi.org/10.1134/S1063776113010111