Magnetic field induced ferroelectricity and half magnetization plateau in polycrystalline ${R}_{2}{\mathrm{V}}_{2}{\mathrm{O}}_{7}\phantom{\rule{4pt}{0ex}}(R=\mathrm{Ni},\text{Co})$

R. Chen, J. F. Wang, Z. W. Ouyang, Z. Z. He, S. M. Wang, L. Lin, J. M. Liu, C. L. Lu, Y. Liu, C. Dong, C. B. Liu, Z. C. Xia, A. Matsuo, Y. Kohama, and K. Kindo
American Physical Society (APS)
Published 2018