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

Gavriliuk, A. G. ; Trojan, I. A. ; Boehler, R. ; Eremets, M. ; Zerr, Andreas ; Lyubutin, I. S. ; Sarkisyan, V. A. (2002):
Equation of state and structural phase transition in FeBO3 at high pressure.
75, In: JETP letters, (1), pp. 23-25. Springer, [Article]

Abstract

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.

Item Type: Article
Erschienen: 2002
Creators: Gavriliuk, A. G. ; Trojan, I. A. ; Boehler, R. ; Eremets, M. ; Zerr, Andreas ; Lyubutin, I. S. ; Sarkisyan, V. A.
Title: Equation of state and structural phase transition in FeBO3 at high pressure
Language: English
Abstract:

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.

Journal or Publication Title: JETP letters
Volume: 75
Number: 1
Publisher: Springer
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Date Deposited: 19 Nov 2008 16:29
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