Antiferromagnetic resonance in $\alpha$-Fe${}_2$O${}_3$ up to its Néel temperature

Abstract

Hematite ($\alpha$-Fe${}_2$O${}_3$) is an antiferromagnetic material with a very low spin damping and high Néel temperature. The temperature dependence of the antiferromagnetic resonance in a bulk single crystal of hematite was characterized from room temperature up to the Néel temperature in the frequency range of 0.19-0.5 THz. From these data, the Néel temperature was estimated as 966 K.

References in corpus (4)

• THz-Frequency Spin-Hall Auto-Oscillator Based on a Canted Antiferromagnet
• Strong coupling antiferromagnetic resonance with sub-THz cavity fields
• Exceptional sign changes of the non-local spin Seebeck effect in antiferromagnetic hematite
• Antiferromagnetic cavity magnon polaritons in collinear and canted phases of hematite