- Conference date: 9-12 December 1975
- Location: Philadelphia, PA, USA
The specific linear magnetic birefringence of a single crystal of hematite (α‐Fe2O3) is reported at 1.15 micron wavelength as a function of the d.c. magnetic field and temperature near the Morin phase transition temperature. When the temperature increases from the region corresponding to the antiferromagnetic state to the weak ferromagnetic state, the linear magnetic birefringence is zero for low applied magnetic field, then grows slowly and finally reaches a maximal value. The variation of the linear magnetic birefringence near and at the Morin temperature is discussed both from the evolution of the anitferromagnetic vector with the d.c. field and temperature and from the possibility to detect the growth with the temperature of surface weak ferromagnetic states across the crystal.
- Magnetic fields
- Magnetic phase transitions
- Phase transitions
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