Morin transition

The Morin transition (also known as a spin-flop transition) is a magnetic phase transition in α-Fe₂O₃ hematite where the antiferromagnetic 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 Fe³⁺ in α-Fe₂O₃.

A change in magnetic properties takes place at the Morin transition temperature.

See also

• Verwey transition – Low-temperature phase transition in magnetite
• Ferromagnetism – Mechanism by which materials form into and are attracted to magnets
• Antiferromagnetism – Regular pattern of magnetic moment ordering
• Paramagnetism – Weak, attractive magnetism possessed by most elements and some compounds
• Néel temperature

References

• Woods, G. T.; Callcott, T. A. (2000). "X-ray magnetic linear dichroism in α-Fe₂O₃". APS March Meeting Abstracts. Bibcode:2000APS..MARA24005W. Retrieved 2022-01-21.