The Morin transition (also known as a spin-flop transition) is a magnetic
phase transition
In chemistry, thermodynamics, and other related fields, a phase transition (or phase change) is the physical process of transition between one state of a medium and another. Commonly the term is used to refer to changes among the basic states o ...
in α-Fe
2O
3 hematite where the
antiferromagnetic
In materials that exhibit antiferromagnetism, the magnetic moments of atoms or molecules, usually related to the spins of electrons, align in a regular pattern with neighboring spins (on different sublattices) pointing in opposite directions. ...
ordering is reorganized from being aligned perpendicular to the c-axis to be aligned parallel to the c-axis below T
M.
T
M = 260K for Fe
3+ in α-Fe
2O
3.
A change in magnetic properties takes place at the Morin transition temperature.
See also
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References
* {{cite journal , last=Woods , first=G. T. , last2=Callcott , first2=T. A. , title=X-ray magnetic linear dichroism in α-Fe
2O
3 , journal=APS March Meeting Abstracts , url=https://ui.adsabs.harvard.edu/abs/2000APS..MARA24005W/abstract , access-date=2022-01-21 , page=, bibcode=2000APS..MARA24005W, date=2000
Magnetic ordering
Phase transitions