TY - JOUR
T1 - Substitutional tuning of electronic phase separation in CaFe3O5
AU - Hong, Ka H.
AU - Solana-Madruga, Elena
AU - Hakala, Branislav Viliam
AU - Patino, Midori Amano
AU - Manuel, Pascal
AU - Shimakawa, Yuichi
AU - Attfield, J. Paul
N1 - Funding Information:
We thank ERC and EPSRC for support, and STFC for provision of beam time at ISIS and the Diamond Light Source. This work was partly supported by grants for the International Collaborative Research Program of Institute for Chemical Research in Kyoto University from MEXT and the JSPS Core-to-Core Program (A) Advanced Research Networks, Japan.
Publisher Copyright:
© 2021 American Physical Society.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/2/15
Y1 - 2021/2/15
N2 - Electronic phase separation into charge-ordered (CO) and charge-averaged (CA) phases in CaFe3-xMxO5 samples for dopants M=Mn and Co has been investigated using powder neutron and x-ray diffraction, magnetization, and Mössbauer spectroscopy measurements. Electronic phase separation is observed in lightly doped CaFe3O5 samples, where 4-10% Ca is replaced by Mn, Fe, or Co, and the CA ground state is stabilized at higher doping levels. The CO and CA phases are found to emerge below a common magnetic ordering temperature at 300-320K providing strong evidence for a lattice strain-driven mechanism that couples their magnetic transitions.
AB - Electronic phase separation into charge-ordered (CO) and charge-averaged (CA) phases in CaFe3-xMxO5 samples for dopants M=Mn and Co has been investigated using powder neutron and x-ray diffraction, magnetization, and Mössbauer spectroscopy measurements. Electronic phase separation is observed in lightly doped CaFe3O5 samples, where 4-10% Ca is replaced by Mn, Fe, or Co, and the CA ground state is stabilized at higher doping levels. The CO and CA phases are found to emerge below a common magnetic ordering temperature at 300-320K providing strong evidence for a lattice strain-driven mechanism that couples their magnetic transitions.
U2 - 10.1103/PhysRevMaterials.5.024406
DO - 10.1103/PhysRevMaterials.5.024406
M3 - Article
AN - SCOPUS:85101122330
SN - 2475-9953
VL - 5
JO - Physical Review Materials
JF - Physical Review Materials
IS - 2
M1 - 024406
ER -