Impact of temperature dependent octahedra distortions on magnetic properties of Co-containing double layered hydroxides
authors Babkin, RY; Pashkevich, YG; Fedorchenko, AV; Fertman, EL; Desnenko, VA; Prokhvatilov, AI; Galtsov, NN; Vieira, DEL; Salak, AN
nationality International
journal JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
author keywords LDH; Structural distortions; Magnetic susceptibility
keywords ORDER
abstract Distortions of hydroxide octahedral complexes in the (ConAlIII)-Al-II layered double hydroxides (LDHs) (n = Co-II/Al-III = 2 and 3) were studied as a function of the ratio of divalent-to-trivalent cations and temperature. A method for calculation the magnetic susceptibility of polycrystalline samples taking into account the statistical distribution of divalent and trivalent cations, and their effect on the distortions of the original structure is proposed. It is shown that the presence of a local maximum on the magnetic susceptibility curve of ConAl LDHs compounds near T similar to 160 K is due to freezing of the lattice parameters and, as a consequence, freezing of the tilting fluctuations of the O-H bonds.
publisher ELSEVIER SCIENCE BV
issn 0304-8853
isbn 1873-4766
year published 2019
volume 473
beginning page 501
ending page 504
digital object identifier (doi) 10.1016/j.jmmm.2018.10.077
web of science category Materials Science, Multidisciplinary; Physics, Condensed Matter
subject category Materials Science; Physics
unique article identifier WOS:000450580900078
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journal analysis (jcr 2019):
journal impact factor 2.717
5 year journal impact factor 2.723
category normalized journal impact factor percentile 54.977
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