Abstract
The compound Mn 2 [VO 4 ]F was synthesized using a hydrothermal synthesis route at low temperature and its crystal structure was determined from single crystal X-ray diffraction data. Mn 2 [VO 4 ]F was characterized by magnetic susceptibility and specific heat capacity measurements. Mn 2 [VO 4 ]F crystallizes with the triplite-type structure, space group C2/c, a = 13.451(3) Å b = 6.6953(16) Å c = 10.126(3) Å β = 116.587(4)° V = 815.6(3) Å 3 and Z = 8. The structure consists of a 3D-framework built up of VO 4 tetrahedra, and manganese (II) polyhedra which form chains running along the [101] and [010] directions. The coordination of the manganese cations and the connectivity between the manganese polyhedra are not defined clearly due to the disorder of the fluoride anions which form zigzag chains along [001]. The magnetic susceptibility follows a Curie–Weiss behavior above 50 K with Θ = −88 K indicating that predominant magnetic interactions are antiferromagnetic. The specific heat capacity and magnetization measurements show that Mn 2 [VO 4 ]F undergoes a three-dimensional magnetic ordering at T N = 30 K and a canted weak ferromagnetism due to mixed-anion effect.
Original language | English |
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Pages (from-to) | 460-465 |
Number of pages | 6 |
Journal | Journal of Asian Ceramic Societies |
Volume | 5 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2017 |
Externally published | Yes |
Funding
This work was partially supported by Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Numbers JP16K05944 (D.M) and JP16H6439 (Y.I.) and by MEXT-Supported Program for the Strategic Research Foundation at Private Universities, 2015-2019 . H. B. Y. was supported by Grant-in-Aid for JSPS Fellows Grant Number 24·02506 . We thank Dr K. Hiraki and Prof. T. Takahashi in Gakushuin Univ. for their experimental support for the magnetic susceptibility and heat capacity measurements.
Funders | Funder number |
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MEXT-Supported | 02506 |
Japan Society for the Promotion of Science | 16K05944, JP16H6439 |
Keywords
- Hydrothermal synthesis
- Mix anion compound
- Single crystal
- Weak ferromagnetism