Antiferromagnetism - Wikipedia
网页Antiferromagnetic materials occur commonly among transition metal compounds, especially oxides. Examples include hematite, metals such as chromium, alloys such as iron manganese (FeMn), and oxides such as nickel oxide (NiO). There are also numerous examples among high nuclearity metal clusters.
Antiferromagnetism | Magnetic Ordering, Exchange Interactions
网页antiferromagnetism, type of magnetism in solids such as manganese oxide (MnO) in which adjacent ions that behave as tiny magnets (in this case manganese ions, Mn 2+) spontaneously align themselves at relatively low temperatures into opposite, or antiparallel, arrangements throughout the material so that it exhibits almost no gross external magne...
Antiferromagnetic spintronics | Nature Nanotechnology
网页2016年3月3日 · Antiferromagnetic materials are internally magnetic, but the direction of their ordered microscopic moments alternates between individual atomic sites. The resulting zero net magnetic moment makes...
Antiferromagnetism - Engineering LibreTexts
网页Antiferromagnetic materials spontaneously align their magnetic moments antiparallel when a magnetic field is applied and at temperatures below the critical temperature. The magnetization of an antiferromagnet remains constant below that critical temperature and the material retains this antiparallel alignment when the external field is removed.
Magnetism - Antiferromagnetism, Properties, Effects | Britannica
网页2024年8月5日 · In substances known as antiferromagnets, the mutual forces between pairs of adjacent atomic dipoles are caused by exchange interactions, but the forces between adjacent atomic dipoles have signs opposite those in ferromagnets. As a result, adjacent dipoles tend to line up antiparallel to each other instead of parallel.
Seeing is believing: visualization of antiferromagnetic domains
网页2020年1月17日 · Understanding and utilizing novel antiferromagnetic (AFM) materials has been recently one of the central issues in condensed matter physics, as well as in materials science and engineering. The...
Introduction to antiferromagnetic magnons - AIP Publishing
网页2019年10月15日 · (a) Illustration of the precessions of the sublattice magnetizations of the two modes of antiferromagnetic resonance in an easy-axis antiferromagnet. (b) Symbols represent the measured magnetic field dependence of the AFMR frequencies in MnF 2 at 1.8–5.0 K, with the field applied parallel and perpendicular to the c …
Rev. Mod. Phys. 90, 015005 (2018) - Antiferromagnetic spintronics
网页2018年2月15日 · Antiferromagnetic materials could represent the future of spintronic applications thanks to the numerous interesting features they combine: they are robust against perturbation due to magnetic fields, produce no stray fields, display ultrafast dynamics, and are capable of generating large magnetotransport effects.
Coexistence of ferromagnetism, antiferromagnetism, and ...
网页2021年6月25日 · The coexistence of the Eu-related ferromagnetism, Fe-related robust antiferromagnetism, and superconductivity is further revealed in Eu 0.8 La 0.2 FeAs 2, providing a platform for further...
6.8: Ferro-, Ferri- and Antiferromagnetism - Chemistry LibreTexts
网页2021年9月28日 · For example, Fe, Co, Ni, Nd 2 Fe 14 B, SmCo 5, and YCo 5 are all ferromagnets, Cr and MnO are antiferromagnets, and Fe 3 O 4 and CoFe 2 O 4 are ferrimagnets. Diamagnetic compounds have a weak negative susceptibility (χ < 0). Definitions. H = applied magnetic field (units: Henry (H)) B = induced magnetic field in a material (units: Tesla (T))