Abstract
We combined magnetoinfrared spectroscopy, magnetization, and lattice dynamics calculations to explore the phase transitions in multiferroic . Both the 185 K ferroelectric transition and the magnetically driven transition to the fully saturated state at 15.3 T involve the formate bending mode, direct evidence of a common connection between the two types of ferroicities and for how lattice distortions promote high-temperature magnetoelectric coupling in this system.
- Received 7 April 2017
- Revised 14 April 2017
DOI:https://doi.org/10.1103/PhysRevB.96.180305
©2017 American Physical Society