view article
Figure 7
Typical temperature dependence and phase transitions leading to an incommensurately modulated phase. Starting from the high-temperature periodic phase, the incommensurately modulated phase forms below Ti. As the temperature is decreased, the wavevector modulus changes. At the same time the modulation becomes more anharmonic, leading to higher Fourier components. At Tc the phase `locks in' into a periodic approximant, the modulation wavevector being a rational value of the high-temperature periodic phase lattice constant.

Journal logoFOUNDATIONS
ADVANCES
ISSN: 2053-2733
Volume 75| Part 2| March 2019| Pages 273-280
https://doi.org/10.1107/S2053273318016765
Follow Acta Cryst. A
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS