Magnetoelastic stresses in rare-earth thin films and superlattices
Identifieur interne : 000E42 ( Pascal/Curation ); précédent : 000E41; suivant : 000E43Magnetoelastic stresses in rare-earth thin films and superlattices
Auteurs : J. I. Arnaudas [Espagne] ; M. Ciria [Espagne] ; C. De La Fuente [Espagne] ; L. Benito [Espagne] ; A. Del Moral [Espagne] ; R. C. C. Ward [Royaume-Uni] ; M. R. Wells [Royaume-Uni] ; C. Dufour [France] ; K. Dumesnil [France] ; A. Mougin [France]Source :
- Low temperature physics [ 1063-777X ] ; 2001-04.
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Abstract
A study of the magnetoelastic behavior of some rare-earth based thin films and superlattices (SLs) is reported. Magnetoelastic stress (MS) measurements are made by a cantilever capacitive technique over a wide range of temperatures (10-30 K) and magnetic fields (up to 12 T). Expressions are derived which relate the cantilever curvatures and the magnetoelastic stresses in anisotropic thin films and SLs (of cubic symmetry) deposited on crystalline substrates. The magnetoelastic energy associated with the interfaces and the epitaxial stress dependence of the volume MS are investigated by studying the basal plane MS in Hon/Lu15 and Ho10/YmSLs: interface MSs even higher than the volume ones are obtained, and the effect of the epitaxial strain on the bulk MSs is large. The MS contributions are also deduced for Dy/Y and Er/Lu SLs, but for ER/Lu incomplete saturation leads to inconclusive results. Although the latter also happens in Ho/Tm SLs, the effect of the epitaxial strain on the bulk MSs is large. The MS clearly shows anisotropy competition. In TbFe2(t)/YFe2(1000Å) (300ÅÅ) epitaxial bilayers, all the MS allowed by symmetry the determined, and it is shown that epitaxial stress strongly modifies the tetragonal MS. The thermal dependence of the MS parameters is also analyzed. © 2001 American Institute of Physics.
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<front><div type="abstract" xml:lang="en">A study of the magnetoelastic behavior of some rare-earth based thin films and superlattices (SLs) is reported. Magnetoelastic stress (MS) measurements are made by a cantilever capacitive technique over a wide range of temperatures (10-30 K) and magnetic fields (up to 12 T). Expressions are derived which relate the cantilever curvatures and the magnetoelastic stresses in anisotropic thin films and SLs (of cubic symmetry) deposited on crystalline substrates. The magnetoelastic energy associated with the interfaces and the epitaxial stress dependence of the volume MS are investigated by studying the basal plane MS in Ho<sub>n</sub>
/Lu<sub>15</sub>
and Ho<sub>10</sub>
/Y<sub>m</sub>
SLs: interface MSs even higher than the volume ones are obtained, and the effect of the epitaxial strain on the bulk MSs is large. The MS contributions are also deduced for Dy/Y and Er/Lu SLs, but for ER/Lu incomplete saturation leads to inconclusive results. Although the latter also happens in Ho/Tm SLs, the effect of the epitaxial strain on the bulk MSs is large. The MS clearly shows anisotropy competition. In TbFe<sub>2</sub>
(t)/YFe<sub>2</sub>
(1000Å) (300ÅÅ) epitaxial bilayers, all the MS allowed by symmetry the determined, and it is shown that epitaxial stress strongly modifies the tetragonal MS. The thermal dependence of the MS parameters is also analyzed. © 2001 American Institute of Physics.</div>
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<fC01 i1="01" l="ENG"><s0>A study of the magnetoelastic behavior of some rare-earth based thin films and superlattices (SLs) is reported. Magnetoelastic stress (MS) measurements are made by a cantilever capacitive technique over a wide range of temperatures (10-30 K) and magnetic fields (up to 12 T). Expressions are derived which relate the cantilever curvatures and the magnetoelastic stresses in anisotropic thin films and SLs (of cubic symmetry) deposited on crystalline substrates. The magnetoelastic energy associated with the interfaces and the epitaxial stress dependence of the volume MS are investigated by studying the basal plane MS in Ho<sub>n</sub>
/Lu<sub>15</sub>
and Ho<sub>10</sub>
/Y<sub>m</sub>
SLs: interface MSs even higher than the volume ones are obtained, and the effect of the epitaxial strain on the bulk MSs is large. The MS contributions are also deduced for Dy/Y and Er/Lu SLs, but for ER/Lu incomplete saturation leads to inconclusive results. Although the latter also happens in Ho/Tm SLs, the effect of the epitaxial strain on the bulk MSs is large. The MS clearly shows anisotropy competition. In TbFe<sub>2</sub>
(t)/YFe<sub>2</sub>
(1000Å) (300ÅÅ) epitaxial bilayers, all the MS allowed by symmetry the determined, and it is shown that epitaxial stress strongly modifies the tetragonal MS. The thermal dependence of the MS parameters is also analyzed. © 2001 American Institute of Physics.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B70E70A</s0>
</fC02>
<fC02 i1="02" i2="3"><s0>001B70E70C</s0>
</fC02>
<fC02 i1="03" i2="3"><s0>001B70E80</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>7570A</s0>
<s2>PAC</s2>
<s4>INC</s4>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>7570C</s0>
<s2>PAC</s2>
<s4>INC</s4>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>7580</s0>
<s2>PAC</s2>
<s4>INC</s4>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Etude expérimentale</s0>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Experimental study</s0>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Holmium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Holmium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Dysprosium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Dysprosium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Erbium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Erbium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>Lutétium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="08" i2="3" l="ENG"><s0>Lutetium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Yttrium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Yttrium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Thulium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Thulium</s0>
<s2>NC</s2>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Couche mince magnétique</s0>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Magnetic thin films</s0>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Superréseau métallique</s0>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Metallic superlattices</s0>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Effet magnétoélastique</s0>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Magnetoelastic effects</s0>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Couche épitaxique magnétique</s0>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Magnetic epitaxial layers</s0>
</fC03>
<fN21><s1>113</s1>
</fN21>
<fN47 i1="01" i2="1"><s0>0116M000546</s0>
</fN47>
</pA>
</standard>
</inist>
</record>
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