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Updated: Feb 6, 2026
Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Crystal growth and magnetic characterization of HoIr2Si2 (I4/mmm)
K Kliemt1, M Bolte2, C Krellner1
1Physikalisches Institut, Goethe-Universität Frankfurt/M, 60438 Frankfurt/M, Germany.
Abstract:
Single crystals of HoIr2Si2 with the body-centered ThCr2Si2-type structure (I4/mmm) were grown by Bridgman method from indium flux. Single crystal structure determination yielded a Si-z position of 0.378(1) in the structure. We excluded the presence of the high temperature phase with the primitive CaBe2Ge2-type structure (P4/nmm) by powder x-ray diffraction. Magnetic measurements on the single crystals yield a Néel temperature of [Formula: see text] K. In the inverse magnetic susceptibility a strong anisotropy with Weiss temperatures [Formula: see text] K and [Formula: see text] K occurs above T N. The effective magnetic moment [Formula: see text] and [Formula: see text] is close to the expected value for a free Ho3+ ion, [Formula: see text]. The field dependent magnetization shows a step-like behaviour due to crystalline electric field effects. The temperature and field dependence of the magnetization hint to the ordering of the magnetic moments along the c direction below T N.
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