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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, anomalous properties are observed at low temperatures for U2Ni2In and U2Rh2In, and a broad peak centered at T=6 K is observed in the susceptibility of this compound.
9 citations
TL;DR: In this paper, the lattice parameters and magnetic properties of (R = Ho, Er) have been investigated, and it was shown that the Ce valence in both systems fluctuates with the concentration of the dopant R. This fluctuation is directly relevant to the degree of localization of Ce 4f electrons.
Abstract: The lattice parameters and magnetic properties of (R = Ho, Er) have been investigated. The deviation of the lattice parameters from Vegard's law indicates that the Ce valence in both systems fluctuates with the concentration of the dopant R. This fluctuation is directly relevant to the degree of localization of Ce 4f electrons, and is independent of the atomic size of the dopant element. The observed metamagnetic transition of has been analysed from the description in the band picture. The Ce valence fluctuation from the mixed-valence state to the localized state increases the moments of the Ce and Fe ions, and the Curie temperature. The changes in the mixed-valence state also affect the properties of the Ce-Fe coupling.
9 citations
TL;DR: In this article, it was shown that the Sc 3 C 4 -type of structure for Ho 3 B x C 4− x for 0≤ x ≤ 0.8, whereas the gadolinium-borocarbide containing compound could only be stabilized by adding 7.5 at.
9 citations
TL;DR: In this paper, it was shown that spin-S chains with SU(2)-symmetric, ferromagnetic nearest-neighbor and frustrating antiferromagnetic exchange interactions exhibit metamagnetic behavior under the inuence of an external magneticeld for small S, in the form of arst-order transition to the fully polarized state.
Abstract: We show that spin-S chains with SU(2)-symmetric, ferromagnetic nearest-neighbor and frustrating antiferromagnetic next-nearest-neighbor exchange interactions exhibit metamagnetic behavior under the inuence of an external magneticeld for small S, in the form of arst-order transition to the fully polarized state. The corresponding magnetization jump increases gradually starting from an S-dependent critical value of exchange couplings and takes a maximum in the vicinity of a ferromagnetic Lifshitz point. The metamagnetism results from resonances in the dilute magnon gas caused by an interplay between quantum uctuations and frustration.
9 citations
TL;DR: In this paper, the authors investigated the metamagnetic transition of the antiferromagnet CeAuSb2 using isothermal magnetization M(H), transverse magnetoresistivity ρt(H) and Hall resistivities ρH(H).
Abstract: CeAuSb2 has previously been classified as an antiferromagnet with moderately enhanced electron masses. As the magnetic order is suppressed by a magnetic field, non-Fermi liquid behaviour has been shown to emerge, suggesting the presence of a quantum critical point (QCP). Within the ordered phase a metamagnetic transition was detected. Here we investigate the material by isothermal magnetization M(H), transverse magnetoresistivity ρt(H) and Hall resistivity ρH(H) measurements. We show that the metamagnetic transition splits into two first order transitions below 2 K. Pronounced anomalies in ρt(H) and ρH(H) are not only observed at the QCP and the metamagnetic transitions but also at a new characteristic field above the QCP.
9 citations