Abstract
The crystal structures, electronic and magnetic properties of conducting molecular magnets developed in our group are reviewed. (DMET)2FeBr4 is composed of alternating stacks of quasi-one-dimensional (1D) donor sheets and square lattice magnetic anion sheets. This salt undergoes an SDW transition of the donor layer at 40 K and an antiferromagnetic transition of Fe3+ spins on the anion layer at 3.7 K. The one-to-one correspondence of the anomalies appearing on the magnetization curves with those on the magnetoresistance supports the presence of the π-d interaction. (EDO-TTFI2)2[M(mnt)2] (M = Ni,Pt) consists of 1D chains of conducting donors and magnetic anions aligned in parallel. These salts show metallic conductivity accompanied with a metal-insulator transition around 90 K. Localized spins on the anions behave as a 1D ferromagnet, whose origin is explained by McConnell's first model. The properties of related materials, (EDTDM)2FeBr4, (EDS-TTF)2FeBr4 and (EDO-TTFBr2)2FeBr4, are also presented.
Original language | English |
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Pages (from-to) | 547-562 |
Number of pages | 16 |
Journal | Journal of Solid State Chemistry |
Volume | 168 |
Issue number | 2 |
DOIs | |
State | Published - 2002/11/01 |
Keywords
- Molecular conductors
- Molecule-based magnets
- TTF derivatives
- π-d interaction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry