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Metamagnetism
About: Metamagnetism is a research topic. Over the lifetime, 2023 publications have been published within this topic receiving 38108 citations.
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TL;DR: In this paper, the authors apply the local approximation of the density functional theory and a recently developed KKR Green's function method to supported clusters of 3D supported metallic nanostructures.
8 citations
TL;DR: In this paper, a two-sublattice collinear Heisenberg-Ising (S=1) metamagnets with uniaxial four-ion anisotropy was investigated by the high-density expansion method.
Abstract: Two-sublattice collinear Heisenberg-Ising (S=1) metamagnets with uniaxial four-ion anisotropy are investigated by the high-density expansion method. Formulas in approximation including Gaussian fluctuations of the molecular field for magnetization and free energy are obtained. The magnon frequencies are obtained in approximation including free magnons in the molecular field fluctuating in a Gaussian way. The theoretical results fitted for the FeCl2 metamagnet yield phase diagram and magnon frequencies in better agreement with the experimental results than other existing theories.
8 citations
TL;DR: In this paper, anisotropic exchange interaction between the a-axis component and the antiferromagnetic interaction has been studied in the orthorhombic TiNiSi-type of UNiGe.
8 citations
TL;DR: In this article, three isostructural coordination polymers, M2(TZI), H2O)2·xH2O (H3TZI = 5-(1H-tetrazol-5-yl)isophthalic acid), have been synthesized under hydrothermal conditions, in which the magnetic Δ-chain motifs based on corner-sharing M3(μ3-OH) isosceles triangle are linked by the TZI ligands.
Abstract: Three isostructural coordination polymers, M2(TZI)(OH)(H2O)2·xH2O (x = 3, M = Cu(II) 1, x = 4, M = Co(II) 2 and Ni(II) 3) (H3TZI = 5-(1H-tetrazol-5-yl)isophthalic acid), have been synthesized under hydrothermal conditions. The compounds consist of 3D frameworks, in which the magnetic Δ-chain motifs based on corner-sharing M3(μ3-OH) isosceles triangle are linked by the TZI ligands, and they represent the rare (3,4,5,6)-connected 4-nodal net topology with the point symbol (43)(4462)(4664)(4768). Magnetic analyses indicate that compound 1 shows the coexistence of spin canting, metamagnetism and antiferromagnetic ordering, whereas compounds 2 and 3 exhibit canted antiferromagnetic coupling without magnetic ordering down to 2 K. Such magnetic behaviors above 2 K are still rare in Cu(II), Co(II) and Ni(II) compounds with similar chains.
8 citations
TL;DR: In this paper, the field dependent magnetization and magnetic susceptibility of an unusual metamagnet Co 2 (OH) 2 (O 2 CC 6 H 4 CO 2 ) was characterized by a maximum in the susceptibility at the Neel temperature of 48 K and by spontaneous magnetization at a T C of 43 K due to a small canting.
8 citations