# Structural, magnetic, and dielectric properties of solid solutions between BiMnO{sub 3} and YMnO{sub 3}

## Abstract

Bi{sub 1−x}Y{sub x}MnO{sub 3} (0.1≤x≤0.9) solid solutions were prepared by the high-pressure high-temperature method at 6 GPa and 1573 K. They crystallize in the GdFeO{sub 3}-type perovskite structure with the Pnma symmetry. Crystal structures of Bi{sub 0.9}Y{sub 0.1}MnO{sub 3} and Bi{sub 0.5}Y{sub 0.5}MnO{sub 3} are studied by synchrotron X-ray powder diffraction at room temperature. Only one Néel temperature, T{sub N}, is found in samples with 0.1≤x≤0.9 in comparison with two Néel temperatures observed in YMnO{sub 3} (T{sub N}=29 and 39 K). Samples with 0.5≤x≤0.9 have almost constant T{sub N}=44 K, while T{sub N} starts to increase linearly for other compositions: T{sub N}=46 K for x=0.3, T{sub N}=58 K for x=0.2, and T{sub N}=68 K for x=0.1. Field-induced transitions from canted-antiferromagnetic states to antiferromagnetic states are detected at about 30 kOe for x=0.2 and 70 kOe for x=0.1. Dielectric constant increases below T{sub N} in samples with 0.5≤x≤1, while it decreases below T{sub N} in samples with 0.1≤x≤0.3. Our data suggest that a magnetic structure changes near x=0.4. By extrapolation, we could estimate lattice parameters (a=5.9221 Å, b=7.5738 Å, and c=5.4157 Å) and T{sub N}=79 K for a hypothetical Pnma modification of BiMnO{sub 3}. - Graphical abstract: Bi{sub 1−x}Y{sub x}MnO{sub 3}more »

- Authors:

- Publication Date:

- OSTI Identifier:
- 22658160

- Resource Type:
- Journal Article

- Resource Relation:
- Journal Name: Journal of Solid State Chemistry; Journal Volume: 246; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BISMUTH COMPOUNDS; DIELECTRIC PROPERTIES; FERROELECTRIC MATERIALS; LATTICE PARAMETERS; MAGNETIC PROPERTIES; MANGANATES; ORTHORHOMBIC LATTICES; PRESSURE RANGE MEGA PA 10-100; SOLID SOLUTIONS; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS

### Citation Formats

```
Belik, Alexei A., E-mail: Alexei.BELIK@nims.go.jp.
```*Structural, magnetic, and dielectric properties of solid solutions between BiMnO{sub 3} and YMnO{sub 3}*. United States: N. p., 2017.
Web. doi:10.1016/J.JSSC.2016.10.025.

```
Belik, Alexei A., E-mail: Alexei.BELIK@nims.go.jp.
```*Structural, magnetic, and dielectric properties of solid solutions between BiMnO{sub 3} and YMnO{sub 3}*. United States. doi:10.1016/J.JSSC.2016.10.025.

```
Belik, Alexei A., E-mail: Alexei.BELIK@nims.go.jp. Wed .
"Structural, magnetic, and dielectric properties of solid solutions between BiMnO{sub 3} and YMnO{sub 3}". United States.
doi:10.1016/J.JSSC.2016.10.025.
```

```
@article{osti_22658160,
```

title = {Structural, magnetic, and dielectric properties of solid solutions between BiMnO{sub 3} and YMnO{sub 3}},

author = {Belik, Alexei A., E-mail: Alexei.BELIK@nims.go.jp},

abstractNote = {Bi{sub 1−x}Y{sub x}MnO{sub 3} (0.1≤x≤0.9) solid solutions were prepared by the high-pressure high-temperature method at 6 GPa and 1573 K. They crystallize in the GdFeO{sub 3}-type perovskite structure with the Pnma symmetry. Crystal structures of Bi{sub 0.9}Y{sub 0.1}MnO{sub 3} and Bi{sub 0.5}Y{sub 0.5}MnO{sub 3} are studied by synchrotron X-ray powder diffraction at room temperature. Only one Néel temperature, T{sub N}, is found in samples with 0.1≤x≤0.9 in comparison with two Néel temperatures observed in YMnO{sub 3} (T{sub N}=29 and 39 K). Samples with 0.5≤x≤0.9 have almost constant T{sub N}=44 K, while T{sub N} starts to increase linearly for other compositions: T{sub N}=46 K for x=0.3, T{sub N}=58 K for x=0.2, and T{sub N}=68 K for x=0.1. Field-induced transitions from canted-antiferromagnetic states to antiferromagnetic states are detected at about 30 kOe for x=0.2 and 70 kOe for x=0.1. Dielectric constant increases below T{sub N} in samples with 0.5≤x≤1, while it decreases below T{sub N} in samples with 0.1≤x≤0.3. Our data suggest that a magnetic structure changes near x=0.4. By extrapolation, we could estimate lattice parameters (a=5.9221 Å, b=7.5738 Å, and c=5.4157 Å) and T{sub N}=79 K for a hypothetical Pnma modification of BiMnO{sub 3}. - Graphical abstract: Bi{sub 1−x}Y{sub x}MnO{sub 3} solid solutions were prepared in the whole compositional range by the high-pressure method. Magnetic and dielectric data suggest that a magnetic structure changes near x=0.4. No ferroelectric properties were found. - Highlights: • Orthorhombic Bi{sub 1−x}Y{sub x}MnO{sub 3} solid solutions are prepared by the high-pressure method. • Structural, magnetic, and dielectric properties are studied. • One Néel temperature is found in all the samples. • T{sub N}=44 K for x=0.5–0.9, 46 K for x=0.3, 58 K for x=0.2, and 68 K for x=0.1. • No ferroelectricity is observed.},

doi = {10.1016/J.JSSC.2016.10.025},

journal = {Journal of Solid State Chemistry},

number = ,

volume = 246,

place = {United States},

year = {Wed Feb 15 00:00:00 EST 2017},

month = {Wed Feb 15 00:00:00 EST 2017}

}