Acoustic resonances in antiferromagnet FeBO3

Explosive instability of quasi-phonon triads in antiferromagnet under frequency modulated electromagnetic field

“…[2] we present elastic deformations as a superposition of quasi-phonon modes: û(r,t)= P A n (t) û n (r). As a result the potential energy of vibrations can be expressed as…”

“…The high-temperature ''easy plane'' antiferromagnets (EPAF) are known as model objects for study of linear, nonlinear and parametric magnetoacoustic phenomena in solids [1][2][3]. Acoustic excitations of EPAF crystals exist in the form of hybrid magnetoelastic waves named quasi-phonons.…”

11B MAS NMR study of Ga1−xFexBO3 mixed crystals

“…Besides, iron borate combines room-temperature magnetic ordering with considerable transparency in visible spectral range; therefore, it is a good candidate for magneto-optical applications [3][4][5]. FeBO 3 single crystals are also known for their extraordinary magnetic and acoustic resonance properties [6].…”

Three wave coupling and explosive instability of magneto-elastic excitations in FeBO3 single crystal

“…The AFEP iron borate has the same group of symmetry as a-Fe 2 O 3 and demonstrates strong magneto-elastic interaction in the linear magneto-elastic coupling [5,6] and in parametric excitation of quasi-phonon pairs [7,8]. The Neel transition of FeBO 3 is not far from room temperature (T N ¼348 K).…”