From magnetic susceptibility, dielectric permittivity, electric polarization and specific heat measurements, we discover spin-induced ferroelectricity and magnetoelectric coupling in Mn3TeO6 and observe two successive magnetic transitions at low temperatures. A non-ferroelectric intermediate magnetic state occurs below 23 K and a multiferroic ground state emerges below 21 K. Moreover, Mn3TeO6 is a candidate for a multiferroic material where two types of incommensurate spin structures, cycloidal and helical, coexist. Theoretically, both spin substructures may contribute to the macro electric polarization via different mechanisms.
@article{arxiv.1511.02370,
title = {Mn3TeO6 - A New Multiferroic Material with Two Magnetic Substructures},
author = {L. Zhao and Z. Hu and C. Y. Kuo and T. -W. Pi and M. -K. Wu and L. H. Tjeng and A. C. Komarek},
journal= {arXiv preprint arXiv:1511.02370},
year = {2015}
}
Comments
This is the pre-peer reviewed version of the following article: Phys. Status Solidi RRL,1-5 (2015), which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/pssr.201510347/abstract