The effect of pressure on the Morin transition in hematite ([alpha]-Fe2O3)

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DOIResolve DOI: http://doi.org/10.1016/j.physb.2006.05.081
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TypeArticle
Journal titlePhysica. B, Condensed matter
Volume385-386
IssuePart 1
Pages391393; # of pages: 3
SubjectFe2O3; Hematite; High pressure; Magnetism; Morin transition; Neutron powder diffraction; Paris-Edinburgh cell
AbstractNeutron powder scattering studies of hematite to a pressure (P) of 6.2?GPa in a Paris-Edinburgh (PE) cell with Fluorinert? as a P-transmitting medium, reveal different behavior to previous investigations that used solid pressure-transmitting media. The P equivalent of the Morin transition is closely approached at room temperature at the highest P. In the present study the spin reorientation, from perpendicular to parallel to the rhombohedral [1?1?1] direction, begins at some 3?GPa higher and goes 25? beyond what was previously observed at high P.
Publication date
AffiliationNational Research Council Canada; NRC Canadian Neutron Beam Centre
Peer reviewedNo
NPARC number12328013
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Record identifier9e1e7abe-d5bf-43f0-9430-ca2ee2215dc8
Record created2009-09-10
Record modified2016-05-09
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