The magnetic control by acoustically-induced strain has driven significant research to pursue novel, ultrafast, compact, and energy-efficient electronic and spintronic devices. In this regard, magnetoelastic antiferromagnets have been highlighted as promising functional materials for this purpose. In this work, we report an experimental and phenomenological study of acoustic resonances in the two magnetic sublattices antiferromagnet NdFeO3, which exhibits strong interplay between magnetic and lattice degrees of freedom. The elastic properties of NdFeO3 are characterized through resonance ultrasound spectroscopy in the  2–300K range. The results evidence a strong magnetoelastic coupling in NdFeO3, even stronger during the spin reorientation transition, mirrored by the rather high acoustic losses, which correlate with the dispersion of the complex magnetic susceptibility and magnetic domain wall dynamics. The results are compatible with the expected symmetry lowering during the spin reorientation transition, and follow what is expected from phenomenological approach. The paramagnetic ordering of the Nd-sublattice, under the influence of the Fe-sublattice magnetic field, is found to influence the magnetoelastic properties just below the spin reorientation transition interval. This study highlights the elastic properties of NdFeO3, an interesting material for the domain-wall motion control and local properties tailoring, which are the key for future applications in nanoscale devices.

Join Zoom Meeting:

https://us06web.zoom.us/j/81874842414?pwd=z0pSwfoM6aMxR2GRYRdxbrTGKx1aSZ.1

Meeting ID: 818 7484 2414

Seminar hosts: Juraj Krsnik i Borna Radatović