Advertisement

High-pressure magnetic properties and P-T phase diagram of iron borate

  • A. G. Gavriliuk
  • I. A. Trojan
  • I. S. Lyubutin
  • S. G. Ovchinnikov
  • V. A. Sarkissian
Order, Disorder, and Phase Transitions in Condensed Systems

Abstract

The high-pressure magnetic states of iron borate 57FeBO3 single-crystal and powder samples have been investigated in diamond anvil cells by nuclear forward scattering (NFS) of synchrotron radiation at different temperatures. In the low-pressure (0 < P < 46 GPa) antiferromagnetic phase, an increase of the Neél temperature from 350 to 595 K induced by pressure was found. At pressures 46–49 GPa, a transition from the antiferromagnetic to a new magnetic state with a weak magnetic moment (magnetic collapse) was discovered. It is attributed to the electronic transition in Fe3+ ions from the high-spin 3d5 (S = 5/2, 6A1g) to the low-spin (S = 1/2, 2T2g) state (spin crossover) due to the insulator-semiconductor-type transition with extensive suppression of strong d-d electron correlations. At low temperatures, NFS spectra of the high-pressure phase indicate magnetic correlations in the low-spin system with a magnetic ordering temperature of about 50 K. A tentative magnetic P-T phase diagram of FeBO3 is proposed. An important feature of this diagram is the presence of two triple points where magnetic and paramagnetic phases of the high-spin and low-spin states coexist.

Keywords

Phase Diagram Magnetic State Electronic Transition Synchrotron Radiation Triple Point 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Database PDF-II, record 21-0423; I. Bernal, C. W. Struck, and J. G. White, Acta Crystallogr. 16, 849 (1963).CrossRefGoogle Scholar
  2. 2.
    R. Diehl, Solid State Commun. 17, 743 (1975).CrossRefGoogle Scholar
  3. 3.
    R. Wolfe, A. J. Kurtzig, and R. C. LeCraw, J. Appl. Phys. 41, 1218 (1970).Google Scholar
  4. 4.
    M. Eibschuts, L. Pfeiffer, and J. W. Nielsen, J. Appl. Phys. 41, 1276 (1970).Google Scholar
  5. 5.
    M. P. Petrov, G. A. Smolenskii, A. P. Pagurt, et al., Fiz. Tverd. Tela (Leningrad) 14, 109 (1972) [Sov. Phys. Solid State 14, 87 (1972)].Google Scholar
  6. 6.
    M. Eibschuts and M. E. Lines, Phys. Rev. B 7, 4907 (1973).ADSGoogle Scholar
  7. 7.
    I. A. Trojan, M. I. Eremets, A. G. Gavriliuk, et al., JETP Lett. 78, 13 (2003).ADSGoogle Scholar
  8. 8.
    R. Ruffer and A. I. Chumakov, Hyperfine Interact. 97/98, 589 (1996).Google Scholar
  9. 9.
    G. V. Smirnov, Hyperfine Interact. 123/124, 31 (1999).Google Scholar
  10. 10.
    T. Mitsui, S. Kitao, M. Seto, et al., J. Phys. Soc. Jpn. 68, 1049 (1999).CrossRefGoogle Scholar
  11. 11.
    Yu. V. Shvyd’ko, Phys. Rev. B 59, 9132 (1999).ADSGoogle Scholar
  12. 12.
    V. A. Sarkissyan, I. A. Trojan, I. S. Lyubutin, et al., JETP Lett. 76, 664 (2002).ADSGoogle Scholar
  13. 13.
    S. G. Ovchinnikov, JETP Lett. 77, 676 (2003).ADSGoogle Scholar
  14. 14.
    A. G. Gavriliuk, G. N. Stepanov, V. A. Sidorov, and S. M. Irkaev, J. Appl. Phys. 79, 2609 (1996).CrossRefADSGoogle Scholar
  15. 15.
    A. G. Gavriliuk, G. N. Stepanov, I. S. Lyubutin, et al., JETP 90, 330 (2000).ADSGoogle Scholar
  16. 16.
    D. M. Wilson and S. Broersma, Phys. Rev. B 14, 1977 (1976).CrossRefADSGoogle Scholar
  17. 17.
    M. J. Massey, R. Merlin, and S. M. Girvin, Phys. Rev. Lett. 69, 2299 (1992).CrossRefADSGoogle Scholar
  18. 18.
    K. Parlinski, Eur. Phys. J. B 27, 283 (2002).CrossRefADSGoogle Scholar
  19. 19.
    S. G. Ovchinnikov and V. N. Zabluda, JETP 98, 135 (2004).Google Scholar
  20. 20.
    A. G. Gavriliuk, I. A. Trojan, R. Boehler, et al., JETP Lett. 75, 23 (2002).CrossRefADSGoogle Scholar
  21. 21.
    A. G. Gavriliuk, I. A. Trojan, S. G. Ovchinnikov, et al., JETP 99, 566 (2004).CrossRefGoogle Scholar
  22. 22.
    É. A. Nagaev, Physics of Magnetic Semiconductors (Nauka, Moscow, 1979) [in Russian].Google Scholar
  23. 23.
    P. Schlottmann, Phys. Rep. 181, 1 (1989).CrossRefADSGoogle Scholar
  24. 24.
    P. Fulde, Electron Correlations in Molecules and Solids (Springer, Berlin, 1991), Springer Ser. Solid-State Sci., Vol. 100.Google Scholar

Copyright information

© Pleiades Publishing, Inc. 2005

Authors and Affiliations

  • A. G. Gavriliuk
    • 1
    • 2
  • I. A. Trojan
    • 1
  • I. S. Lyubutin
    • 2
  • S. G. Ovchinnikov
    • 3
  • V. A. Sarkissian
    • 2
  1. 1.Institute for High-Pressure PhysicsTroitsk, Moscow oblastRussia
  2. 2.Institute of CrystallographyRussian Academy of SciencesMoscowRussia
  3. 3.Kirensky Institute of Physics, Siberian DivisionRussian Academy of SciencesKrasnoyarskRussia

Personalised recommendations