Second-order anisotropy due to magnetostriction for L10-FePt

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2025-02-01 DOI:10.1016/j.solidstatesciences.2024.107782

D. Legut , P. Nieves

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引用次数: 0

Abstract

The effective magnetocrystalline anisotropy energy associated with magnetostriction is studied for tetragonal L1

_{0}

-FePt by means of first-principles calculations, which is expressed in terms of the intrinsic anisotropy for an undeformed crystal, the magnetostrictive coefficients, and the elastic tensor. A very small correction is found for the first anisotropy constant

Δ K_{1} / K_{1} = 0.07

%, while a much more significant contribution is obtained for the second one

Δ K_{2} / K_{2} = 21.86

%. General analysis of this effect for tetragonal crystals is provided, finding that

Δ K_{1}

will be always positive for any stable phase with this symmetry. The potential implications and applications of these results are discussed.

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.