| Issue |
EPL
Volume 84, Number 4, November 2008
|
|
|---|---|---|
| Article Number | 47002 | |
| Number of page(s) | 3 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/84/47002 | |
| Published online | 10 November 2008 | |
Structural properties and phase transition of RFeMO (R = La, Nd; M = As, P) materials
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences - Beijing 100080, China
Corresponding author: LJQ@aphy.iphy.ac.cn
Received:
4
August
2008
Accepted:
5
October
2008
The structural properties of RFeMO (R = La, Nd; M = As, P) materials were analyzed by transmission electron microscopy (TEM), revealing that the layered RFeMO crystals often contain a variety of structural defects, such as stacking faults and small-angle boundaries. In situ TEM observations revealed a remarkable spin density wave (SDW) instability near 150 K, and associated complex structural transitions can be clearly observed in both crystalline symmetry and local microstructural features.
PACS: 74.70.Dd – Ternary, quaternary, and multinary compounds (including Chevrel phases, borocarbides, etc.) / 61.72.Ff – Direct observation of dislocations and other defects (etch pits, decoration, electron microscopy, X-ray topography, etc.) / 61.05.J- – Electron diffraction and scattering
© EPLA, 2008
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