Anomalous domain-wall freezing and ferroelectricity of KDP polycrystals under influence of nanocellulose filler

Hoai Thuong Nguyen ()
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Hoai Thuong Nguyen: Industrial University of Ho Chi Minh City

The European Physical Journal B: Condensed Matter and Complex Systems, 2022, vol. 95, issue 12, 1-8

Abstract: Abstract For the first time, a composite from polycrystals of KH2PO4 (KDP) with a filler of cellulose nanoparticles (CNP) was prepared to investigate the influence of cellulose on domain-wall freezing and ferroelectricity of KDP. The extrapolation of experimental data using Vogel–Fulcher law demonstrated a higher temperature of domain-wall freezing in KDP/CNP composite in comparison with pure KDP. In addition, the impact of CNP led to the expansion of ferroelectric phase in KDP and the red-shift of relaxation frequencies. Besides, the deformation of P–E hysteresis loops with the increase in coercive field as well as the decrease in saturated and remnant polarization was also detected. Graphical abstract Synthesis of KDP/CNP composite

Date: 2022
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DOI: 10.1140/epjb/s10051-022-00461-3

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