Hyperfine interactions of 57Fe impurity nuclei in TmNiO3 and YbNiO3 nickelates in the range of magnetic and structure phase transitions
Tóm tắt
Hyperfine interactions of 57Fe impurity nuclei are studied by probe Mössbauer spectroscopy in TmNiO3 and YbNiO3 perovskite-like nickelates in the ranges of temperature transitions of an insulator (T < T
IM
) ↔ metal (T > T
IM
) and antiferromagnetic (T < T
N
) ↔ paramagnetic (T > T
N
). The changing behavior of hyperfine interaction parameters of 57Fe nuclei in the ranges of phase transition temperatures (T
IM
and T
N
) is analyzed. The results are interpreted in the context of the charge disproportionation of Ni3+ cations associated with the electronic localization in monoclinic-distorted nickelates at T < T
IM
.
Tài liệu tham khảo
Alonso, J.A., Martinez-Lope, M.J., Casais, M.T., et al., J. Am. Chem. Soc., 1999, vol. 121, p. 4754.
Kim, S.-J., Demazeau, G., Presniakov, I., et al., J. Am. Chem. Soc., 2001, vol. 123, p. 8127.
Staub, U., Meijer, G.I., Fauth, F., et al., Phys. Rev. Lett., 2002, vol. 88, p. 126402.
De la Cruz, F.P., Piamonteze, C., Massa, N.E., and Salva, H., Phys. Rev. B, 2002, vol. 66, p. 153104.
Kim, S.-J., Presniakov, I., Demazeau, G., et al., J. Solid State Chem., 2002, vol. 168, p. 126.
Kim, S.J., Martinez-Lope, M.J., Fernandez-Diaz, M.T., et al., Chem. Mat., 2002, vol. 14, p. 4926.
Baranov, A.V., Presnyakov, I.A., Rusakov, V.S., Sobolev, A.V., Pokholok, K.V., Demszeau, G., Alonso, J.A., and Godovikov, S.K., Bull. Russ. Acad. Sci.: Phys., 2005, vol. 69, no. 10, p. 1685.
Caytuero, A., Micklitz, H., Litterst, F.J., et al., Phys. Rev. B, 2006, vol. 74, p. 094433.
Caytuero, A., Micklitz, H., Abd-Elmeguid, M.M., et al., Phys. Rev. B, 2007, vol. 76, p. 193105.
Presniakov, I., Baranov, A., Demazeau, G., et al., J. Phys.: Condens. Matter, 2007, vol. 19, p. 036201.
Alonso, J.A., Martinez-Lope, M.J., Demazeau, G., et al., Dalton Trans., 2008, p. 6584.
Rusakov, V.S., Presniakov, I.A., Demazeau, G., Alonso, J.A., Sobolev, A.V., Gubaidulina, T.V., and Lukyanova, E.N., Bull. Russ. Acad. Sci.: Phys., 2010, vol. 74, no. 3, p. 335.
Matsnev, M.E. and Rusakov, V.S., AIP Conf. Proc., 2012, vol. 1489, p. 178.