Journal ArticleDOI
Aspects of transition‐metal magnetism
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TLDR
In this paper, the local spin density theory of electronic exchange and correlation is implemented using parameter-free self-consistent energy-band calculations, and the results are used to design new magnetic compounds composed of nonmagnetic elements.Abstract:
The following questions are considered: How do itinerant d electrons of the Heusler alloys produce magnetic moments that are completely localized on the Mn atoms? What is the microscopic origin of Invar anomalies? Why is elemental antiferromagnetism confined to Cr, Mn, and Fe? Why do the Fe atoms in Fe3Si carry two distinctly different magnetic moments? Can we use our understanding of transiton‐metal magnetism to ’’design’’ new magnetic compounds composed of nonmagnetic elements? Our answers to these questions are based on the local‐spin‐density theory of electronic exchange and correlation, implemented using parameter‐free self‐consistent energy‐band calculations.read more
Citations
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Tuning the Magnetic Properties of Nanoparticles
TL;DR: A matrix of parameters that can be varied to tune the magnetic properties of nanoparticles is outlined, focusing on the effect of size, shape, composition, and shell-core structure on saturation magnetization, coercivity, blocking temperature, and relaxation time.
Journal ArticleDOI
Electronic structure and magnetism of Fe 3-x V x X (X=Si, Ga, and Al) alloys by the KKR-CPA method
TL;DR: In this article, the authors presented first principles charge and spin-consistent electronic structure computations on the Heusler-type disordered alloys for three different metalloids.
Journal ArticleDOI
Density functional theory of non-collinear magnetism
TL;DR: In this article, the authors formulate a density functional theory (DF) to describe non-collinear magnetism and present self-consistent, spin-polarised energy-band calculations based on the local approximation to DF theory.
Journal ArticleDOI
Study of the critical behaviour of the magnetization and electrical resistivity in cubic La(Fe, Si) 13 compounds
TL;DR: In this paper, the magnetic properties of the cubic NaZn 13 type pseudobinary compounds La(T x Si 1-x ) 13 were studied for T = Fe, Co and Ni in the temperature range 4.2-300 K.
Journal ArticleDOI
Magnetic composite an environmental super adsorbent for dye sequestration – A review
TL;DR: In this article, the exploitation of magnetic composites and magnetic nanocomposites for adsorption of dyes, hazards posed by Dyes, sorption mechanism, preparation methods, magnetic behavior and characteristics of magnetized particles with the relevant literature on the basic principle of adsorbption using MCs and MNCs for separation of dye under optimum physicochemical condition.
References
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Journal ArticleDOI
Cohesive properties of metallic compounds: Augmented-spherical-wave calculations
TL;DR: In this article, a conceptual model and a calculational procedure for the study of the electronic structure of metallic compounds are presented, which consists of spherical atoms compressed into finite volumes appropriate to the solid.
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Uniform susceptibilities of metallic elements
TL;DR: In this paper, the exchange-correlation enhanced spin susceptibilities of 32 metallic elements from Li through In have been calculated using the spin-polarized exchange correlation functional of von Barth and Hedin.
Journal ArticleDOI
The Origin of the `Invar' Effect
TL;DR: In this paper, the idea that there are two electronic configurations of iron atoms in a face-centred cubic lattice is extended to the iron-nickel alloy system, and it is shown that the anomalous effect originates from the thermal excitation of the configuration with lower atomic volume in opposition to the normal anharmonic origin of expansion.
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Experimental energy band dispersions and lifetimes for valence and conduction bands of copper using angle-resolved photoemission
TL;DR: In this paper, the dispersion relations for both valence and conduction-band states of copper using angle-resolved photoemission with polarized synchrotron radiation were determined with an accuracy of 0.05-0.5% of the zoneboundary momentum.
Journal ArticleDOI
Single crystalline elastic constants of ferromagnetic face centered cubic Fe-Ni invar alloys☆
G Hausch,Hans Warlimont +1 more
TL;DR: In this article, the Bethe-Slater curve is used to classify the anomalous behavior of the elastic constants of Fe-Ni Invar alloys in both the ferromagnetic and paramagnetic states.