Abstract:
The magnetic-field induced orientational transition in helicoidal liquid-crystalline antiferromagnets representing compensated suspensions of magnetic nanoparticles in cholesteric liquid crystals is theoretically studied. The untwisting of a helicoidal structure and the behavior of mean magnetization as a function of the field strength and material parameters are investigated. It is shown that the magnetic subsystems in the field-untwisted ferronematic phase are not completely compensated, and the ferronematic phase is ferrimagnetic.
Citation:
A. N. Zakhlevnykh, K. V. Kuznetsova, “Magnetic-field induced orientational transition in a helicoidal liquid-crystalline antiferromagnet”, Fizika Tverdogo Tela, 58:11 (2016), 2274–2281; Phys. Solid State, 58:11 (2016), 2358–2366