Topic
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 intensity of the 1 0 magnetic reflection as a function of magnetic field was examined and it was shown that the magnetization plateau phases are accompanied by large XY components of magnetic moments.
Abstract: Resonant magnetic x-ray diffraction experiments on the Shastry–Sutherland lattice TbB 4 were carried out under pulsed magnetic fields up to 30 T at 8 K. TbB 4 exhibits a multi-step magnetization process above 16 T below about 20 K when magnetic fields are applied along the c -axis. We examined the intensity of the 010 magnetic reflection as a function of magnetic field and found that the magnetization plateau phases are accompanied by large XY components of magnetic moments. We propose novel magnetic structures which consist of XY spins and Ising spins for the plateau phases. We also propose that energy level crossing and its inherent degeneracy give rise to the successive metamagnetic transitions in TbB 4 .
19 citations
TL;DR: In this paper, the authors present results of high-field magnetization and neutron diffraction studies of Ising-like systems of PrCo2Si2, UPdln and TbNi2NiSi2 using single crystal samples.
19 citations
TL;DR: In this paper, a brief account of the zero temperature magnetic response of a system of strongly correlated electrons in strong magnetic field is given in terms of its quasiparticle properties.
Abstract: A brief account of the zero temperature magnetic response of a system of strongly correlated electrons in strong magnetic field is given in terms of its quasiparticle properties. The scenario is based on the paramagnetic phase of the half-filled Hubbard model, and the calculations are carried out with the dynamical mean field theory (DMFT) together with the numerical renormalization group (NRG). As well known, in a certain parameter regime one finds a magnetic susceptibility which increases with the field strength. Here, we analyze this metamagnetic response based on Fermi liquid parameters, which can be calculated within the DMFT-NRG procedure. The results indicate that the metamagnetic response can be driven by field-induced effective mass enhancement. However, also the contribution due to quasiparticle interactions can play a significant role. We put our results in context with experimental studies of itinerant metamagnetic materials.
19 citations
TL;DR: In this paper, fixed spin moment calculations within TB-LMTO-ASA method using LSDA were performed for the compound LaFe12 B6 and for lattice constants taken from experimental data.
19 citations
TL;DR: In this article, the electronic structure of d-electrons under external magnetic field is calculated for ScCo2, YCo2 and LuCo2 in the self-consistent tight-binding approximation and the field dependence of the induced moment is estimated in the Hartree-Fock approximation.
19 citations