Ferroelectric and antiferroelectric phases studied by dielectric spectroscopy

• Two MHPOBC analogues, exhibiting ferroelectric and antiferroelectric phases, have been studied by means of frequency domain dielectric spectroscopy, time domain spectroscopy and electrooptic methods. Four relaxation processes at low frequencies and one broad spectrum at high frequencies have been revealed in the antiferroelectric phases of both substances studied by dielectric spectroscopy.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

liquid crystals

ferroelectricity

antiferroelectricity

dielectric spectroscopy

Goldstone mode

soft mode

molecular relaxation

Physics

Fysik

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