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 present resistivity, magnetoresistance, magnetisation and heat capacity results on EuRh2Si2 and show that the temperature dependence of specific heat below the transition is unusual, being proportional to T over a significant temperature range.
36 citations
TL;DR: In this paper, the mapping transformation technique is applied to obtain exact results for the spin-1/2 and spin-S (S = 1/2, 1) Ising-Heisenberg antiferromagnetic chain in the presence of an external magnetic field.
Abstract: The mapping transformation technique is applied to obtain exact results for the spin-1/2 and spin-S (S = 1/2, 1) Ising–Heisenberg antiferromagnetic chain in the presence of an external magnetic field. Within this scheme, a field-induced first-order metamagnetic phase transition resulting in multiplateau magnetization curves is investigated in detail. It is found that the scenario of the plateau formation depends fundamentally on the ratio between Ising and Heisenberg interaction parameters, as well as on the strength of the XXZ Heisenberg exchange anisotropy.
36 citations
TL;DR: In this paper, the magnetization and magnetostriction of Mn 3 GaC were measured under pulsed high magnetic fields up to 37 T and under steady magnetic field and pressure up to 0.82 GPa.
Abstract: We have measured the magnetization and magnetostriction of Mn 3 GaC in pulsed high magnetic fields up to 37 T and the magnetization under steady magnetic field and pressure up to 0.82 GPa. Mn 3 GaC is antiferromagnetic (AF) at low temperatures. It exhibits successive transitions to an intermediate (I), to a ferromagnetic (F) and to a paramagnetic phase. The transition between the AF and I phases is first order and the others are second order. The transition temperature between the I and F phases does not change greatly with increasing magnetic field. At low temperatures, a metamagnetic transition from the AF to the I state is observed. Volume magnetostriction measurement at 4.2 K indicates that the volume is abruptly decreased by the metamagnetic transition and then gradually shrinks with increasing field. High pressure stabilizes the F phase and enhances the Mn moment.
36 citations
TL;DR: In this article, structural and magnetic properties of the RCuAl (R=rare earth) intermetallic compounds were studied by means of X-ray diffraction, susceptibility, magnetization and specific heat measurements.
36 citations
TL;DR: In this article, the magnetic, resistivity and specific heat measurements of RENiAl compounds are presented, and the energy spectra of the RE 4f states are obtained from the analysis of the Schottky anomalies found in the specific heat data.
Abstract: Results of magnetic, resistivity and specific heat measurements of RENiAl compounds are presented. Except for CeNiAl, all the compounds with the unfilled f‐shell rare earths exhibit magnetic ordering at low temperatures. In the majority of cases, we observe one or two additional magnetic phase transitions below the ordering temperature. In RENiAl antiferromagnets, metamagnetic transitions are observed in moderate magnetic fields. Magnetization measurements performed on oriented powders reveal a strong magnetocrystalline anisotropy (except for GdNiAl and CeNiAl) which originates in crystal field interaction. The energy spectra of the RE 4f states were obtained from the analysis of the Schottky anomalies found in the specific heat data. This analysis also revealed indications of strong magnetic correlations in the paramagnetic state.
36 citations