Multiferroic properties of CaMnO

G Zhang, S Dong, Z Yan, Y Guo, Q Zhang… - Physical Review B …, 2011 - APS
We report that CaMn 7 O 12 is a new magnetic multiferroic material. The appearance of a
ferroelectric polarization coinciding with the magnetic phase transition (∼ 90 K) suggests …

A perovskite containing quadrivalent iron as a charge‐disproportionated ferrimagnet

I Yamada, K Takata, N Hayashi… - Angewandte …, 2008 - Wiley Online Library
A large number of oxides containing FeII and/or FeIII are known, whereas only a few, like
(Sr, Ca) FeIVO3[1–3] and K2FeVIO4, contain iron in higher oxidation states.[4] During the …

A-site-ordered perovskites with intriguing physical properties

Y Shimakawa - Inorganic chemistry, 2008 - ACS Publications
Recent findings on intriguing physical properties of new A-site-ordered perovskite structure
oxides are reviewed. High-pressure and high-temperature conditions stabilize the square …

High-Pressure Synthesis, Crystal Structures, and Properties of CdMn7O12 and SrMn7O12 Perovskites

YS Glazkova, N Terada, Y Matsushita… - Inorganic …, 2015 - ACS Publications
We synthesize CdMn7O12 and SrMn7–x Fe x O12 (x= 0, 0.08, and 0.5) perovskites under
high pressure (6 GPa) and high temperature (1373–1573 K) conditions and investigate their …

Low-Temperature Structural Modulations in CdMn7O12, CaMn7O12, SrMn7O12, and PbMn7O12 Perovskites Studied by Synchrotron X-ray Powder …

AA Belik, YS Glazkova, Y Katsuya… - The Journal of …, 2016 - ACS Publications
Structural phase transitions in CdMn7O12, CaMn7O12, SrMn7O12, and PbMn7O12
perovskites are investigated by synchrotron X-ray powder diffraction between 113 and 583 …

Charge disproportionation in NiO ( Tm, Yb) perovskites observed in situ by neutron diffraction and Fe probe Mössbauer spectroscopy

JA Alonso, MJ Martínez-Lope, IA Presniakov… - Physical Review B …, 2013 - APS
An in-situ investigation from high-resolution neutron powder diffraction data on the structural
evolution of TmNiO 3 and YbNiO 3 perovskites across the metal-insulator transition, with T …

Understanding Complex Interplay among Different Instabilities in Multiferroic BiMn7O12 Using 57Fe Probe Mössbauer Spectroscopy

IS Soboleva, VI Nitsenko, AV Sobolev… - International Journal of …, 2024 - mdpi.com
Here, we report the results of a Mössbauer study on hyperfine electrical and magnetic
interactions in quadruple perovskite BiMn7O12 doped with 57Fe probes. Measurements …

Charge Disproportionation and Charge Transfer in A‐site Ordered Perovskites Containing Iron 

Y Shimakawa, M Takano - 2009 - Wiley Online Library
New A‐site ordered perovskite structure oxides, CaCu3Fe4O12 and LaCu3Fe4O12, were
synthesized under high‐pressure and high‐temperature conditions. The compounds contain …

Structure of the Local Environment and Hyperfine Interactions of 57Fe Probe Nuclei in AMnO3 (A = Sc, In)

AV Sobolev, S Šandalova, MN Smirnova… - Russian Journal of …, 2023 - Springer
The results of a Mössbauer study of hyperfine interactions of 57Fe probe nuclei in
isostructural hexagonal manganites h-ScMnO3 and h-InMnO3 are presented. The results of …

Modulation of atomic positions in CaCuxMn7− xO12 (x≤ 0.1)

W Sławiński, R Przeniosło, I Sosnowska… - … Section B: Structural …, 2009 - journals.iucr.org
The modulation of atomic positions in CaCuxMn7− xO12 (x= 0 and 0.1) was studied using
synchrotron radiation powder diffraction below 250 and 220 K, respectively. The copper-rich …