منابع مشابه
Nuclear Spin-lattice Relaxation in Metallic Ferro- and Antiferromagnets
The nuclear spin-lattice relaxation rates 1 / T I were found to be independent of temperature in the paramagnetic states of various kinds of metallic magnets. It has been ascertained from quantitative analyses that the values of 1 / Ti in the weak itenerant ferromagnets and the localized moment systems were explained by the SCR and the HBEN theories of spin fluctuations, respectively. Both theo...
متن کاملNonzero macroscopic magnetization in half-metallic antiferromagnets at finite temperatures
Combining density-functional theory calculations with many-body Green’s-function technique, we reveal that the macroscopic magnetization in half-metallic antiferromagnets does not vanish at finite temperature as for the T=0 limit. This anomalous behavior stems from the inequivalent magnetic sublattices which lead to different intrasublattice exchange interactions. As a consequence, the spin flu...
متن کاملDepleted pyrochlore antiferromagnets
I consider the class of “depleted pyrochlore” lattices of corner-sharing triangles, made by removing spins from a pyrochlore lattice such that every tetrahedron loses exactly one. Previously known examples are the “hyperkagome” and “kagome staircase”. I give criteria in terms of loops for whether a given depleted lattice can order analogous to the kagome “ √ 3× √ 3” state, and also show how the...
متن کاملImprinting vortices into antiferromagnets.
The effect of imprinting symmetric and displaced vortex structures into an antiferromagnetic material is investigated in micron-sized disks consisting of exchange coupled ferromagnetic-antiferromagnetic bilayers. The imprint of displaced vortices manifests itself by the occurrence of a new type of asymmetric hysteresis loops characterized by curved, reversible, central sections with nonzero rem...
متن کاملSpintronics in antiferromagnets.
Magnetic domains and the walls between are the subject of great interest because of the role they play in determining the electrical properties of ferromagnetic materials and as a means of manipulating electron spin in spintronic devices. However, much less attention has been paid to these effects in antiferromagnets, primarily because there is less awareness of their existence in antiferromagn...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2020
ISSN: 0021-8979,1089-7550
DOI: 10.1063/5.0009445