Magnon dispersion in the polar ferrimagnet BaCaFe4O7

Polar or non-centrosymmetric ferri(-o)magnets offer a plethora of potential technological devices;the inherent magnetoelectric effect can underpin both pyroelectric or...极性或非中心对称亚铁磁体与铁磁体（ferri(-o)magnets）具备大量极具应用潜力的技术器件；其固有的磁电效应（magnetoelectric effect）可支撑热释电效应相关应用或……