Abstract
The structural, magnetic, and dielectric properties of Pb3Mn7O15 have been investigated using high-quality single crystals. Pb3Mn7O15 adopts a pseudo-hexagonal orthorhombic structure, with partiall ...
Highlights
Manganites are materials with properties relevant for both fundamental research and practical applications, owing to the cross-correlation of their charge, spin, orbital and lattice degrees of freedom
Crystal and magnetic structures were investigated by single crystal and powder X-ray diffraction (XRPD), and neutron powder diffraction on crushed single-crystals (NPD; data collected at the LLB, Saclay, France)
For the crystal selected for X-ray single crystal diffraction and study of physical properties, the average oxygen index d was positive and of the order of 0.02(1)
Summary
Manganites are materials with properties relevant for both fundamental research and practical applications, owing to the cross-correlation of their charge, spin, orbital and lattice degrees of freedom. Pb3Mn7O15 (PMO) is a mixed valence manganite (Mn3?/Mn4?), whose structural [14,15,16,17], magnetic and dielectric [10,11,12,13, 26,27,28,29,30] properties have been studied in detail. The structural, thermal, magnetic and dielectric properties of stoichiometric single crystals of Pb3Mn7O15 are investigated. Powder X-ray and neutron diffraction data recorded on crushed single-crystals confirm a pseudo-hexagonal orthorhombic structure, and allow us to determine the magnetic structure of the low-temperature antiferromagnetic state of Pb3Mn7O15
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