![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Frequency domain dielectric spectroscopy (FDDS), differential scanning calorimetry and polarising microscopy were used to study phase transition and dielectric properties of a new fluorinated MHPOBC analogue, exhibiting ferroelectric, ferrielectric and antiferroelectric phases. Dielectric spectra were measured versus temperature and as function of measuring electric field and bias field on sample aligned by means of 1.2 T magnetic field. Very large dielectric absorption observed between SmA and SmCA* phase with a characteristic break is most probably due to the presence of a ferrielectric SmCsub* phase. Up to four dielectrically active modes were detected within the intermediate SmC subphase. The intermediate phase shows pronounced bias and measuring field dependencies of dielectric spectrum.