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 magnetic and magnetocaloric properties of RE2Cu2O5 compounds were investigated under low magnetic field around 10.3 and 13.5 K for RE = Dy and Ho, respectively, and a field-induced metamagnetic transition from AFM to ferromagnetic phase was happened with the application of higher magnetic field for both compounds.
38 citations
TL;DR: The reaction of Eu with molten lithium polyselenide produced a new rare-earth dichalcogenide, EuSe2 as mentioned in this paper, which cannot be obtained via direct combination of the elements and is therefore an exam...
Abstract: The reaction of Eu with molten lithium polyselenide produced a new rare-earth dichalcogenide, EuSe2. This compound cannot be obtained via direct combination of the elements and is therefore an exam...
38 citations
TL;DR: In this paper, four perovskite compounds ATbO3 (A = Fe, Cr, Al, Co) are studied by means of neutron diffraction, and three Neel temperatures are distinguished.
Abstract: Four perovskite compounds ATbO3 (A = Fe, Cr, Al, Co) are studied by means of neutron diffraction. Three Neel temperatures are distinguished. When A is magnetic and T < TN1, the A sublattice orders in a G mode; when T < TN2, the Tb sublattice orders and is coupled with A in the same irreducible representation of the space group Pbnm; finally when T < TN3, Tb orders in another mode which is decoupled from A, i.e., Tb orders in a different irreducible representation. The order in the latter case is the only one observed one if A is diamagnetic, and its origin is mainly dipolar. The Neel temperatures are given; the metamagnetism of Tb is studied for T < TN3.
38 citations
TL;DR: The local spectroscopic signatures of metamagnetic criticality in Sr(3)Ru(2)O(7) were explored using scanning tunneling microscopy (STM); a pseudogap structure was observed over several tens of meV, accompanied by a c(2 x 2) superstructure in STM images, which represents a new electronic ordering at the surface in the absence of any measurable surface reconstruction.
Abstract: The local spectroscopic signatures of metamagnetic criticality in Sr(3)Ru(2)O(7) were explored using scanning tunneling microscopy (STM). Singular features in the tunneling spectrum were found close to the Fermi level, as would be expected in a Stoner picture of itinerant electron metamagnetism. These features showed a pronounced magnetic field dependence across the metamagnetic critical point, which cannot be understood in terms of a naive Stoner theory. In addition, a pseudogap structure was observed over several tens of meV, accompanied by a c(2 x 2) superstructure in STM images. This result represents a new electronic ordering at the surface in the absence of any measurable surface reconstruction.
38 citations
TL;DR: In this paper, the influence of pressure on the itinerant electron metamagnetic (IEM) transition has been investigated for a La(FexSi1−x)13 compound.
Abstract: The influence of pressure on the itinerant electron metamagnetic (IEM) transition has been investigated for a La(FexSi1−x)13 compound. The critical temperature T0 defined as the disappearance point of the IEM transition decreases with increasing hydrostatic pressure. Since the pressure dependence of T0 is smaller than that of TC, the temperature range for appearance of the IEM transition becomes wider with increasing hydrostatic pressure. These results are consistent with the theoretical model based on the Landau expansion of free energy including the influence of spin fluctuations and the magnetovolume effect. On applying pressure, the critical field Bc for the IEM transition increases proportionally with temperature in low pressures, whereas it exhibits a quadratic temperature dependence with lowering the Curie temperature in high pressures. The change in the temperature dependence of Bc is explained by a change in the thermal growth rate of spin fluctuations.
38 citations