Abstract We propose and experimentally demonstrate a means of broadband phonon-magnon interconversion that relies on combining magnetoelastic coupling with translational symmetry breaking in the important experimental material yttrium iron garnet (YIG). As well as being interest for its basic physics, this quasiparticle mechanism adds to range effects potentially find useful application hybrid ...

We investigate the temperature and magnetic field dependence of the ultrasonic attenuation in rare earth alloys and compounds with crystalline field split energy levels. In rare earth (RE) metallic systems we have to E: (H) consider two different attenuation mechanisms : 1. The conduction electron-phonon coupling : 2 ~ The transfer of energy from the sound wave to the conduction electrons depen...

Inelastic neutron scattering (INS) experiments and random phase approximation calculations have been used to investigate the low–energy spin–wave excitations in PrNi2Si2. The modulated magnitude of the ordered magnetic moments of Pr ions implies that the associate, longitudinally polarized magnetic excitations are more intense and dispersive than the usual transverse spin waves. Within the rand...

Nonreciprocal microwave devices are key components of communication platforms. Nonreciprocity can arise in chiral systems, where chirality refers to a fixed handedness that is preserved under time reversal. Chiral excitations (quasiparticles) provide opportunities for the realization miniaturized with directional properties. In particular, surface acoustic waves propagate magnetic media and dis...

This paper reports on the use of nanoporous Pt-TiO2 thin films coated onto magnetoelastic sensors for the detection of ethylene, an important plant growth hormone. Five different metal oxide coatings, TiO2, TiO2+ZrO2, TiO2+TTCN(1,4,7Trithiacyclononane)+Ag, SiO2+Fe, and TiO2+Pt, each having demonstrated photocatalytic activity in response to ethylene, were investigated for their ability to chang...

The temperature and field dependence of alternating-current (ac) susceptibility in a Ni50Mn25Ga25 single crystal was measured using an ac susceptometer with a dc magnetic field oriented in the [100] and [110] directions, respectively. It is found that even at very low fields the premartensitic transition temperature decreases monotonically with the increase of the applied field, and it decrease...

The mechanisms of magnetoelastic interaction in MnF 2 are studied using the method acoustoelectric transformation. temperature dependence piezomagnetic coupling coefficient and its anisotropy were determined antiferromagnetic phase. We observe a new effect consisting appearance non-diagonal component magnetic susceptibility tensor, which is proportional to square order parameter, under action s...