Evidence for the existence of a PbCO3-II phase from high pressure X-ray measurements-Reference-Cited by-同舟云学术

Evidence for the existence of a PbCO3-II phase from high pressure X-ray measurements

Published:2010-04 Issue:4 Volume:225 Page:146-152
ISSN:0044-2968
Container-title:Zeitschrift für Kristallographie
language:en
Short-container-title:

Author:

Minch Robert,Peters Lars¹,Ehm Lars²,Knorr Karsten³,Siidra Oleg I.⁴,Prakapenka Vitali⁵,Dera Przemyslaw⁵,Depmeier Wulf¹

Affiliation:

1. Christian-Albrechts-Universität zu Kiel, Inst. für Geowissenschaften, Abt. Mineralogie/Kristallographie, Kiel, Deutschland

2. Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften, Mineralogie/Krista, Kiel, Deutschland

3. Bruker AXS GmbH, Karlsruhe, Deutschland

4. St. Petersburg State University, Department of Crystallography, St. Petersburg, Russische Föderation

5. University of Chicago, GSECARS, U.S.A.

Abstract

Abstract The high-pressure room temperature behavior of PbCO3 was investigated by angle-dispersive synchrotron powder diffraction up to 16.16(5) GPa. A phase transition to a high-pressure polymorph II of lead carbonate was observed at a pressure of approximately p c = 8.7 GPa. Thereby, the symmetry is reduced from orthorhombic Pmcn to monoclinic P121/c1. The cell parameters at p = 8.90(5) GPa are a = 5.101(1) Å, b = 8.303(3) Å, c = 5.602(2) Å, β = 89.51(4)°, Z = 4. The transformation is supposed to be of 2nd order.

Publisher

Walter de Gruyter GmbH

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1524/zkri.2010.1194/pdf

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