Abstract
Annealing effects on the magnetic and structural properties of single-crystal TDAE-(Formula presented) are investigated. When a crystal is well-annealed at 350 K, ferromagnetic ordering takes place below 16 K, though no magnetic phase transition is shown in as-grown crystal. The saturated magnetization was obtained to be (Formula presented) per (Formula presented) It was first found that the well-annealed crystal shows a structural phase transition around 180 K, probably associated with the orientational ordering of (Formula presented) molecules. On the other hand, the as-grown crystal undergoes no structural phase transition at least down to 30 K while the motion of (Formula presented) molecules is restricted below around 150 K. The possible relation between the low-temperature structure and the magnetic ordering is discussed.
Original language | English |
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Pages (from-to) | R862-R865 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 61 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2000 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics