The rich physics of A-site-ordered quadruple perovskite manganites AMn 7 O 12

AA Belik, RD Johnson, DD Khalyavin - Dalton Transactions, 2021 - pubs.rsc.org
Perovskite-structure AMnO3 manganites played an important role in the development of
numerous physical concepts such as double exchange, small polarons, electron–phonon …

Magnetic and electric properties of CaMn7O12 based multiferroic compounds: effect of electron do**

J Sannigrahi, S Chattopadhyay, D Dutta… - Journal of Physics …, 2013 - iopscience.iop.org
The mixed valent multiferroic compound CaMn 7 O 12 is studied for its magnetic and electric
properties. The compound undergoes magnetic ordering below 90 K with a helimagnetic …

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

W Sławiński, R Przeniosło, I Sosnowska… - 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 …

Structural and magnetic modulations inCaCuxMn7− xO12

W Sławiński, R Przeniosło, I Sosnowska… - Journal of Physics …, 2010 - iopscience.iop.org
Low temperature atomic position modulations and magnetic moment modulations are
reported for CaCu x Mn 7− x O 12 (x= 0.0, 0.1 and 0.23) using neutron powder diffraction …

Soft-phonon-driven orbital order in

SM Souliou, Y Li, X Du, M Le Tacon, A Bosak - Physical Review B, 2016 - APS
We use variable-temperature x-ray thermal diffuse scattering and inelastic scattering to
investigate the lattice dynamics in single crystals of multiferroic CaMn 7 O 12 which undergo …

Large negative thermal expansion in the cubic phase of

K Gautam, DK Shukla, S Francoual, J Bednarcik… - Physical Review B, 2017 - APS
Observations of multiferroicity and giant improper ferroelectricity in CaMn 7 O 12 invigorated
the research on this material. Delicate structural changes have been reported to cause …

Ferroelectric phase transition and spontaneous electric polarization in CaMn7O12 from first principles

JQ Dai, YM Song, H Zhang - New Journal of Physics, 2015 - iopscience.iop.org
The phase transition mechanism and ferroelectric polarization of CaMn 7 O 12 are
investigated by using the density functional theory. Our results show that the P3 space group …

Helical magnetism in Sr-doped films

A Huon, AM Vibhakar, AJ Grutter, JA Borchers… - Physical Review B, 2018 - APS
Noncollinear magnetism can play an important role in multiferroic materials but is relatively
understudied in oxide heterostructures compared to their bulk counterparts. Using variable …

Magnetic and orbital correlations in multiferroic probed by x-ray resonant elastic scattering

K Gautam, SS Majid, S Francoual, A Ahad, K Dey… - Physical Review B, 2020 - APS
The quadruple perovskite CaMn 7 O 12 is a topical multiferroic in which the hierarchy of
electronic correlations driving structural distortions, modulated magnetism, and orbital order …

Multiferroicity in In‐Containing Perovskites

JA Alonso - ChemPhysChem, 2010 - Wiley Online Library
The coexistence of ferroelectricity and magnetic order in certain transition metal oxides with
a non-centrosymmetric structure, such as TbMnO3[1] and TbMn2O5 [2] oxides or BiFeO3[3] …