Автор |
P A C Gane |
Автор |
A J Leadbetter |
Дата выпуска |
1983-04-20 |
dc.description |
X-ray diffraction measurements have been made of the wavevector and intensity of satellite diffraction spots as a function of temperature in two examples of crystal B phases. In N-(5-n butyloxybenzylidene)-4-n-heptylaniline (5O.7) a simple sinusoidal layer modulation of fixed wavelength grows in amplitude with decreasing temperature until the B-phase becomes unstable at the first-order B-to-G phase transition. In 4-n-pentylbenzenethio 4'-n-duodecyloxybenzoate (12S5) the layer modulation approximates to a ramp function which grows in wavelength at constant ramp angle with decreasing temperature until the G phase, having a very similar tilt angle is formed at a first-order transition. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Modulated crystal B phases and B-to-G phase transitions in two types of liquid crystalline compound |
Тип |
paper |
DOI |
10.1088/0022-3719/16/11/009 |
Print ISSN |
0022-3719 |
Журнал |
Journal of Physics C: Solid State Physics |
Том |
16 |
Первая страница |
2059 |
Последняя страница |
2067 |
Аффилиация |
P A C Gane; Chem. Dept., Exeter Univ., Exeter, UK |
Аффилиация |
A J Leadbetter; Chem. Dept., Exeter Univ., Exeter, UK |
Выпуск |
11 |