Structure of incommensurate NiTi(Fe)
- 1 July 1989
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 40 (1), 255-263
- https://doi.org/10.1103/physrevb.40.255
Abstract
NiTi(Fe) has an incommensurate and a commensurate phase between its low-temperature martensitic and high-temperature CsCl-type structures. Anomalous deviations of the satellite positions in the incommensurate phase have been reported. These deviations have raised doubts about the adequacy of a model based on sinusoidal modulations of the basic structure. Our Landau model shows that these features can be explained by considering the coupling of the modulations to the lattice strain.Keywords
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