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Equation of state and structural phase transition in FeBO3 at high pressure

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons100952

Gavriliuk,  A. G.
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons101323

Trojan,  I. A.
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons100855

Boehler,  R.
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons100925

Eremets,  M.
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons101389

Zerr,  A.
High Pressure Group, Max Planck Institute for Chemistry, Max Planck Society;

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Zitation

Gavriliuk, A. G., Trojan, I. A., Boehler, R., Eremets, M., Zerr, A., Lyubutin, I. S., et al. (2002). Equation of state and structural phase transition in FeBO3 at high pressure. JETP Letters, 75(1), 23-25.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0014-91FA-0
Zusammenfassung
The evolution of X-ray diffraction patterns in FeBO3 under high pressures up to 63 GPa has been investigated at room temperature in a diamond anvil cell. A structural phase transition at a pressure of 53 +/- 2 GPa was found for the first time. The transition is of the first-order type with a hysteresisless drop of the reduced unit cell volume of about 8.6%. Apparently, the transition is isostructural. At pressures below the transition, the equation of state for FeBO3 was fitted. In the third-order approximation of the Birch-Murnagan equation of state, the bulk modulus K and its first pressure derivative K' were found to be 255 +/- 25 GPa and 5.0 +/- 1.2, respectively. (C) 2002 MAIK "Nauka / Interperiodica".