Journal
PHYSICAL REVIEW B
Volume 79, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.100106
Keywords
antiferromagnetic materials; bismuth compounds; crystal growth; crystal structure; electric moments; ferroelectric materials; magnetic transition temperature; multiferroics; permittivity; space groups
Funding
- Bayerisches Geoinstitut at Bayreuth (Germany)
- EU Research Infrastructures: Transnational Access Programme [505320]
Ask authors/readers for more resources
We report on the high-pressure synthesis of BiMn7O12, a manganite displaying a quadruple-perovskite structure. Structural characterization of single-crystal samples shows a distorted and asymmetrical coordination around the Bi atom due to presence of the 6s(2) lone pair, resulting in noncentrosymmetric space group Im, leading to a permanent electrical dipole moment and ferroelectric properties. On the other hand, magnetic characterization reveals antiferromagnetic transitions in agreement with the isostructural compounds, and the dielectric constant shows anomalies matching the magnetic transition temperatures. BiMn7O12 is therefore a promising multiferroic material, with evidence of coupling between magnetic and dielectric properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available