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 memory of position and shape of antiferromagnetic domains, which first grow from the more magnetized phase by field decreasing, is preserved even after cycling through Ha = 0 as a consequence of random-field induced nano-domain structures.
7 citations
TL;DR: In this article, high-field magnetization measurements of YbCu 2 Si 2 at 1.3 K were carried out up to 50 T and showed no metamagnetic transition.
Abstract: High-field magnetization measurements of CeCu 2 X 2 ( X = Si and Ge) and YbCu 2 Si 2 were carried out up to 50 T. The magnetization of CeCu 2 Ge 2 at 1.3 K increases linearly, with a small metamagnetic transition at 7.8 and 10.5 T for H//[1 1 0] and [1 0 0], respectively, and saturates at 27 T for H//[1 0 0] and [1 1 0], while the magnetization also saturates at 15.5 T for H//[0 0 1], without the metamagnetic transition. The high-field magnetization of YbCu 2 Si 2 at 1.3 K shows no metamagnetic transition.
7 citations
TL;DR: In this article, a self-consistent LMTO method was used to calculate the electronic structures of Fe 4 Si 4− n Ge n (n = 0-4) with a cubic B20-type structure.
Abstract: Electronic structures of Fe 4 Si 4− n Ge n ( n =0–4) with a cubic B20-type structure are calculated by a self-consistent LMTO method. It is found that these compounds are narrow-gap semiconductors in the non-magnetic state. The band gap is found to decrease with increasing n . For n ⩾2, however, the metallic state with the magnetic moment of about 1 μ B per Fe is shown to be more stable. It is also shown that the characteristic properties of itinerant-electron metamagnetism, i.e., the first-order transition at the Curie temperature and the field-induced metamagnetic transition, may take place at the boundary between the non-magnetic and magnetic states near n =2.
7 citations
TL;DR: In this article, the magnetic properties of a series of 2,2,6,6-tetramethylpiperidin-1-yloxyl (TEMPO) radicals were studied and a mechanism of intermolecular ferromagnetic coupling was proposed.
Abstract: We have studied the magnetic properties of a series of 2,2,6,6-tetramethylpiperidin-1-yloxyl (TEMPO) radicals, among which eight ferromagnets and six metamagnets were found. Based on their crystal structures, a mechanism of intermolecular ferromagnetic coupling was proposed. The ferromagnetic interactions in the crystals of 4-(p-methylthiobenzylideneamino)-TEMPO and 4-benzylamino-TEMPO were explained by the proposed mechanism. The ferromagnetic transition of 4-(p-chlorobenzylideneamino)-TEMPO was confirmed by zero-field μSR measurements.
7 citations
7 citations