Low Temperature Physics: 40, 106 (2014); https://doi.org/10.1063/1.4865556
Физика Низких Температур: Том 40, Выпуск 2 (Февраль 2014), c. 139-147    ( к оглавлению , назад )

Low-temperature magnetism in the honeycomb systems SrLn2O4(Review Article)

O.A. Petrenko

University of Warwick, Department of Physics, Coventry CV4 7AL, UK
E-mail: o.petrenko@warwick.ac.uk

Received August 2, 2013

Аннотация

Recent progress in the understanding of the complex magnetic properties of the family of rare-earth strontium oxides, SrLn2O4, is reviewed. These compounds consisting of hexagons and triangles are affected by geometrical frustration and therefore exhibit its characteristic features, such as a significant reduction of magnetic ordering temperatures and complex phase diagrams in an applied field. Some of the observed features appear to be rather remarkable even in the context of the unusual behavior associated with geometrically frustrated magnetic systems. Of particular interest is the coexistence at the lowest temperature of different magnetic structures (exhibiting either long or short-range order) characterized by different propagation vectors in materials without significant chemical or structural disorder.

PACS: 75.25.–j Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.);
PACS: 75.50.Ee Antiferromagnetics;
PACS: 75.47.Lx Magnetic oxides.

Ключевые слова: rare-earth strontium oxides, magnetic properties.