Microstructure of the 'discommensurate' state in NbTe4
- 20 September 1986
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 19 (26) , 5049-5069
- https://doi.org/10.1088/0022-3719/19/26/007
Abstract
A model for the 'discommensurate' structure of NbTe4 is proposed based on the analysis of electron diffraction patterns. It is found that above the lock-in temperature, which is around 50K, the structure can be described either as deformation-modulated or as interface-modulated. Both approaches lead to the same model, which is moreover in agreement with the incommensurate structure determination by Van Smaalen and co-workers (1986). Satellite dark-field and high-resolution electron microscopy both combined with optical diffraction are used to confirm the proposed model.Keywords
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