Journal ArticleDOI
Demagnetizing Factors of the General Ellipsoid
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TLDR
In this paper, the demagnetizing factors of ellipsoids of three different axes are presented, along with supplementary formulas which cover a large number of special cases of ellipses.Abstract:
Charts and tables of the demagnetizing factors of prolate and oblate spheroids are readily available; however, demagnetizing factors of ellipsoids of three different axes are incompletely tabulated and laborious to calculate. This article presents charts and tables which make possible easy determination of the demagnetizing factor for any principal axis of an ellipsoid of any shape. Formulas for the demagnetizing factors of the general ellipsoid are included together with supplementary formulas which cover a large number of special cases.read more
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Journal ArticleDOI
Liquid-crystalline elastomer-nanoparticle hybrids with reversible switch of magnetic memory.
Johannes M. Haberl,Antoni Sánchez-Ferrer,Adriana M. Mihut,Hervé Dietsch,Ann M. Hirt,Raffaele Mezzenga +5 more
TL;DR: A stimuli-responsive material is synthesized that combines the actuation potential of liquid-crystalline elastomers with the anisotropic magnetic properties of ellipsoidal iron oxide nanoparticles, which exhibits unique shape-memory features with magnetic information that can be reversibly stored and erased via parameters typical of soft materials.
Journal ArticleDOI
Interplay between exchange bias and uniaxial anisotropy in a ferromagnetic/antiferromagnetic exchange-coupled system
TL;DR: In this article, the effect of the relative orientation and magnitudes of the exchange bias and the uniaxial shape anisotropy has been systematically investigated in nanometer-sized lines of the magneto-optic Kerr effect for different orientations of the applied magnetic field.
Journal ArticleDOI
Misorientation control and functionality design of nanopillars in self-assembled perovskite-spinel heteroepitaxial nanostructures.
Sheng Chieh Liao,Pei Yu Tsai,Chen Wei Liang,Heng Jui Liu,Jan Chi Yang,Su Jien Lin,Chih-Huang Lai,Ying-Hao Chu +7 more
TL;DR: The tunable nanostructures through this approach enable the control of material functionality such as the magnetic anisotropy of CoFe(2)O(4).
Book
Ellipsoidal Harmonics: Theory and Applications
TL;DR: In this paper, the ellipsoidal system and its geometry are discussed, and the theory of Niven and Cartesian harmonics is presented. But the authors do not consider the relationship between sphero-conal and elliptic harmonics.
Journal ArticleDOI
The demagnetizing field of a nonuniform rectangular prism
Anders Smith,Kaspar Kirstein Nielsen,Dennis Christensen,Christian R.H. Bahl,Rasmus Bjørk,Jesper Henri Hattel +5 more
TL;DR: In this article, the effect of demagnetization on the magnetic properties of a rectangular ferromagnetic prism under nonuniform conditions is investigated and a numerical model for solving the spatially varying internal magnetic field is developed, validated, and applied to relevant cases.