Abstract
PbMn(SO4)2 has been synthesized in an evacuated quartz tube. The nuclear and magnetic crystal structures have been determined using powder X-ray and neutron diffraction. This material crystallizes in the enantiomorphic space group pair P41212({music sharp sign}92) and P43212({music sharp sign}96), forming a double-helical arrangement of Pb2+ and Mn2+ cations. The Mn2+O6 octahedra are distorted. Each 3d5 Mn2+ has four nearest-neighbors and four next-nearest-neighbors adopting a frustrating arrangement. The compound orders antiferromagnetically at 5.5 K. Field dependent specific heat and magnetization measurements show that TN is suppressed to 3.3 K when μ0H=9 T.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2461-2467 |
| Number of pages | 7 |
| Journal | Journal of Solid State Chemistry |
| Volume | 182 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2009 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry
Keywords
- Acentric
- Chiral
- Frustration
- Magnetism
- New compound
- Piezoelectric