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NEEL LINES CONFIGURATIONS IN FERRIMAGNETIC GARNETS WITH ORTHORHOMBIC ANISOTROPY AND CANTED MAGNETIZATION

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HAL Id: jpa-00224874

https://hal.archives-ouvertes.fr/jpa-00224874

Submitted on 1 Jan 1985

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NEEL LINES CONFIGURATIONS IN FERRIMAGNETIC GARNETS WITH

ORTHORHOMBIC ANISOTROPY AND CANTED MAGNETIZATION

Ph. Trouilloud, J. Miltat

To cite this version:

Ph. Trouilloud, J. Miltat. NEEL LINES CONFIGURATIONS IN FERRIMAGNETIC GARNETS

WITH ORTHORHOMBIC ANISOTROPY AND CANTED MAGNETIZATION. Journal de Physique

Colloques, 1985, 46 (C6), pp.C6-145-C6-145. �10.1051/jphyscol:1985626�. �jpa-00224874�

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JOURNAL DE PHYSIQUE

Colloque C6, suppl6ment au n09, Tome 46, septembre 1985 page C6-145

NEEL LINES CONFIGURATIONS IN FERRIMAGNETIC GARNETS WITH ORTHORHOMBIC ANISOTROPY AND CANTED MAGNETIZATION

Ph. ~rouilloud* and J. Miltat

Laboratoire de Physique des SoZides, Bztiment 510, Universite' Paris-Sud, 91405 Orsay, France

R6sum6

Les contraintes et d6formations internes au voisinage d'une lisisre d'implan- tation ont 6t6 rgcemment mod6lisdes au moyen de densit6s de dislocations coin 111.

Aprhs une brSve discussion des fondements physiques d'un tel modhle, les r6sultats seront utilisgs pour d6terminer les directions de facile aimanta- tion autour d'un cylindre non implant6. I1 sera montr6 que les composantes de cisaillement ont une influence faible sur la distribution d'aimantation dcterminbe principalement par les valeurs relatives des contraintes normale 2 la couche et perpendiculaire B la lisihre d'implantation.

Les distributions de contraintes et ddformations caract6ristiques d'implan- tations N6on et Hydrogsne seront compar6es. Enfin, le modsle prgsent permet de justifier des calculs ant6rieurs de la morphologie des parois chargees [ 2 ] .

Abstract

Recently, an elastic model, based on densities of infinitesimal dislocations, describing the strains and stresses arising from spatially limited implanta- tions has been developped [ 11.

After discussing the physical basis of the model, attention will be devoted to the expected magnetization distribution around a non-implanted cylinder.

It will be shown that shear-stress components barely affect the magnetiza- tion distribution which is mainly governed by the relative magnitudes of the stress components normal to the layer and perpendicular to the implantation boundary.

Stress and strain profiles from Neon and Hydrogen implantations will be compared, allowing for a discussion of previous estimates of charged wall morphology 121.

[ I ] J. Miltat : IEEE Trans. Magn. MAG20 (1984) 1114.

[ 2 ] A. Hubert : 3. Magn. and Mag. Mat. 31-34 (1983) 976.

- p~

*now at : Department of Electrical Engineering, University of Austin, Texas, U.S.A.

Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphyscol:1985626

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