Magnetoelastic coupling and ferromagnetic-type in-gap spin excitations in multiferroic $\alpha$-Cu${}_2$V${}_2$O${}_7$

L. Wang, J. Werner, A. Ottmann +6

We investigate magnetoelectric coupling and low-energy magnetic excitations in multiferroic $\alpha$-Cu${}_2$V${}_2$O${}_7$ by detailed thermal expansion, magnetostriction, specific heat and…