On the sign of the linear magnetoelectric coefficient in Cr${}_2$O${}_3$

Eric Bousquet, Eddy Lelièvre-Berna, Navid Qureshi +5

We establish the sign of the linear magnetoelectric (ME) coefficient, $\alpha$, in chromia, Cr${}_2$O${}_3$. Cr${}_2$O${}_3$ is the prototypical linear ME material, in which an electric (magnet…