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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 article, the susceptibility and magnetization of metamagnetic UCoAl were measured under high pressure up to 1.2 GPa, which is similar to that of a typical 3D itinerant metamagnet.
Abstract: The susceptibility and magnetization of metamagnetic UCoAl were measured under high pressures up to 1.2 GPa. The metamagnetic behavior under high pressure is very similar to that of a typical 3d itinerant metamagnet.
3 citations
TL;DR: In this paper, the induced moments as a function of magnetic field are obtained for compounds with various numbers of d electrons, and, on the constituent transition-metal elements A and B, by performing calculations at more than 50 points on this plane.
Abstract: Electronic structures of d electrons under magnetic fields for the transition-metal compounds with the cubic Laves phase structure are calculated in the self-consistent tight-binding approximation. The induced moments as a function of magnetic field are obtained for compounds with various numbers of d electrons, and , on the constituent transition-metal elements A and B. Ferromagnetic and paramagnetic phases are obtained on the plane of and , by performing calculations at more than 50 points on this plane. In a narrow range along the boundary between the two phases a metamagnetic phase is found. The critical fields of the metamagnetic transition are calculated in this range. The calculated results are qualitatively in good agreement with the observed values for , and .
3 citations
TL;DR: In this paper, it was shown that UNiAl can lead to a considerable enhancement of antiferromagnetic exchange interactions, which is reflected in the increase of the Neel temperature and the critical field of the metamagnetic transition.
Abstract: Hydrogenation of UNiAl leads to a considerable enhancement of antiferromagnetic exchange interactions, which is reflected in the increase of the Neel temperature and the critical field of the metamagnetic transition.
3 citations
TL;DR: In this article, specific heat, magnetization, magnetoresistance, and neutron diffraction measurements of single crystals of ErNi3Ga9 were performed and the magnetic properties were described by an Ising-like model in which the magnetic moment is always along the c-axis owing to the large uniaxial anisotropy caused by the crystalline electric field effect in the low temperature region.
Abstract: We report specific heat, magnetization, magnetoresistance, and neutron diffraction measurements of single crystals of ErNi3Ga9. This compound crystalizes in a chiral structure with space group R 32 . The erbium ions form a two–dimensional honeycomb structure. ErNi3Ga9 displays antiferromagnetic order below 6.4 K. We determined that the magnetic structure is slightly amplitude–modulated as well as antiferromagnetic with q = ( 0 , 0 , 0.5 ) . The magnetic properties are described by an Ising–like model in which the magnetic moment is always along the c–axis owing to the large uniaxial anisotropy caused by the crystalline electric field effect in the low temperature region. When the magnetic field is applied along the c–axis, a metamagnetic transition is observed around 12 kOe at 2 K. ErNi3Ga9 possesses crystal chirality, but the antisymmetric magnetic interaction, the so-called Dzyaloshinskii–Moriya (DM) interaction, does not contribute to the magnetic structure, because the magnetic moments are parallel to the DM–vector.
3 citations
TL;DR: In this article, the properties of HoMn6−xFexSn6 (0.5, 0.9 and 1.2) compounds were studied by means of field-cooled (FC) and zero-field-conditioned (ZFC) magnetization measurements in the temperature range 5 Ã − K ≤ T Ã ≥ 600 Ã.
3 citations