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 article, the authors used Monte Carlo simulations and electronic structure models to calculate the ground state magnetic phase diagram as well as topological and optical properties for few layer films with thickness up to six septuple layers.
Abstract: MnBi$_2$Te$_4$ (MBT) is a promising antiferromagnetic topological insulator whose films provide access to novel and technologically important topological phases, including quantum anomalous Hall states and axion insulators. MBT device behavior is expected to be sensitive to the various collinear and non-collinear magnetic phases that are accessible in applied magnetic fields. Here, we use classical Monte Carlo simulations and electronic structure models to calculate the ground state magnetic phase diagram as well as topological and optical properties for few layer films with thicknesses up to six septuple layers. Using magnetic interaction parameters appropriate for MBT, we find that it is possible to prepare a variety of different magnetic stacking sequences, some of which have sufficient symmetry to disallow non-reciprocal optical response and Hall transport coefficients. Other stacking arrangements do yield large Faraday and Kerr signals, even when the ground state Chern number vanishes.
7 citations
TL;DR: In this paper, it was shown that the metamagnetic transition from canted ferromagnetic ordering to ferromagnetism is possible to occur at relatively high temperatures and under a small applied magnetic field.
7 citations
TL;DR: Er 3 Rh single crystals were obtained by the Czochralski method from a levitated melt and the electronic structure, lattice parameters, magnetization in strong fields, AC and DC magnetic susceptibility and electrical resistivity were measured along the principal crystallographic directions as discussed by the authors.
7 citations
TL;DR: In this article, the role of the density of states in the metamagnetic transition of YCo2 has been investigated in pulsed high magnetic fields up to 100 T with a special interest in the role in the presence of low temperature magnetizations.
7 citations