Nanoparticles induced multiferroicity in liquid crystal | Zendy

Prasun Ganguly | Zendy; Ajay Kumar | Zendy; Kundeti Muralidhar | Zendy; A. M. Biradar | Zendy

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Nanoparticles induced multiferroicity in liquid crystal

Author(s) -

Prasun Ganguly,

Ajay Kumar,

Kundeti Muralidhar,

A. M. Biradar

Publication year - 2016

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4948652

Subject(s) - multiferroics , ferroelectricity , ferromagnetism , materials science , nanoparticle , liquid crystal , hysteresis , condensed matter physics , doping , magnetic hysteresis , ferromagnetic material properties , nickel , nanotechnology , magnetic field , chemical physics , magnetization , optoelectronics , chemistry , metallurgy , physics , quantum mechanics , dielectric

Soft multiferroic character has been observed in a ferroelectric liquid crystal (FLC) dispersed with nickel nanoparticles (Ni NPs). A suitable amount of ferromagnetic Ni NPs has been added into FLC material, and the co-existence of ferroelectric and ferromagnetic ordering is examined using P-E and M-H hysteresis measurements. The magnitude of ferromagnetic order is found to depend strongly on the concentration of Ni NPs. Our theoretical approach indicated a strong dependence of helical pitch of FLC on the doping concentration of Ni NPs. We proposed that the intrinsic magnetic field of Ni NPs has been coupled with that of director field of the FLC molecules to result in the observed multiferroic behavior.

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