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Magnetic structure
About: Magnetic structure is a research topic. Over the lifetime, 10787 publications have been published within this topic receiving 207143 citations.
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TL;DR: In this article, a low-temperature magnetic structure and properties of marokite are determined and reported, and the magnetic order is evidenced below T N =220 K by a peak in the magnetic susceptibility and the appearance of symmetry-lowering magnetic Bragg reflections in neutron diffraction.
45 citations
TL;DR: In this paper, the authors focus on the two-dimensional frustrated magnetism in the layered chalcogenide Mott insulator NiGa 2 S 4 and related compounds and provide the unique example of a S = 1 2D antiferromagnet on a regular exact triangular lattice.
Abstract: Geometrical frustration may suppress conventional magnetic long-range order and possibly promote a novel type of ordering associated with a higher order degree of freedom than spin dipolar-moment such as vector spin chirality and spin quadrupole moment. After a brief overview of such phenomena due to vector spin chirality, we focus on the two-dimensional (2D) frustrated magnetism in the layered chalcogenide Mott insulator NiGa 2 S 4 and related compounds. NiGa 2 S 4 provides the unique example of a S = 1 2D antiferromagnet on a regular exact triangular lattice. Extensive studies using high-purity samples of NiGa 2 S 4 have revealed that Ni 2+ S = 1 Heisenberg spins exhibit resonant critical slowing down at T * = 8.5 K without forming a magnetic long-range order, signaling a viscous spin-liquid state. The critical spin-fluctuation regime extends over almost an order of magnitude in temperature both above and below T * . Even well below T * , the spin–spin correlation remains short-ranged at an incommensura...
45 citations
45 citations
Journal Article•
45 citations
TL;DR: In this paper, a neutron diffraction study of polycrystalline intermetallics was carried out at liquid helium temperature and the magnetic structure of these compounds consists of ferromagnetic layers perpendicular to the c-axis coupled antiferromagnetic with sequence +-+ −− for PrCu 2 Si 2 and +--+ for PrFe 2 Ge 2 and NdFe 2Ge 2.
45 citations