N.M.R. Study on 31P in an amorphous superconducting (Mo0.5Ru0.5)80P20 alloy
Identifieur interne : 000976 ( Main/Exploration ); précédent : 000975; suivant : 000977N.M.R. Study on 31P in an amorphous superconducting (Mo0.5Ru0.5)80P20 alloy
Auteurs : D. Aliaga Guerra [France] ; J. Durand ; W. L. Johnson [États-Unis] ; P. Panissod [France]Source :
- Solid State Communications [ 0038-1098 ] ; 1979.
Abstract
Knight-shift and spin-lattice relaxation time have been measured on 31P in an amorphous (Mo0.5Ru0.5)80P20 alloy obtained by splat-cooling. Measurements were carried out in applied fields of 5.2 and 8.7 kG in the normal state and in the mixed superconducting state for temperatures down to 1.4°K (Tco = 5.4°K). Just below Tc (Tc/T = 1.1), the reduced relaxation rate peaks at a value Rs/Rn of 1.5; then, it decreases, for 1.2 ⩽ Tc/T ⩽ 2.5, according to an exponential law yielding an energy gap value in excellent agreement with BCS prediction for weak-coupled superconductors.
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DOI: 10.1016/0038-1098(79)90446-0
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Aliaga Guerra</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire de Magnétisme et de Structure Electronique des Solides - Université Louis Pasteur 4, rue Blaise Pascal 67000 Strasbourg</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName></affiliation></author><author><name sortKey="Durand, J" sort="Durand, J" uniqKey="Durand J" first="J." last="Durand">J. Durand</name></author><author><name sortKey="Johnson, W L" sort="Johnson, W L" uniqKey="Johnson W" first="W. L." last="Johnson">W. L. Johnson</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>W.M. 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Measurements were carried out in applied fields of 5.2 and 8.7 kG in the normal state and in the mixed superconducting state for temperatures down to 1.4°K (Tco = 5.4°K). Just below Tc (Tc/T = 1.1), the reduced relaxation rate peaks at a value Rs/Rn of 1.5; then, it decreases, for 1.2 ⩽ Tc/T ⩽ 2.5, according to an exponential law yielding an energy gap value in excellent agreement with BCS prediction for weak-coupled superconductors.</div></front></TEI><affiliations><list><country><li>France</li><li>États-Unis</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li></region><settlement><li>Strasbourg</li></settlement></list><tree><noCountry><name sortKey="Durand, J" sort="Durand, J" uniqKey="Durand J" first="J." last="Durand">J. Durand</name></noCountry><country name="France"><region name="Grand Est"><name sortKey="Aliaga Guerra, D" sort="Aliaga Guerra, D" uniqKey="Aliaga Guerra D" first="D." last="Aliaga Guerra">D. Aliaga Guerra</name></region><name sortKey="Panissod, P" sort="Panissod, P" uniqKey="Panissod P" first="P." last="Panissod">P. Panissod</name></country><country name="États-Unis"><noRegion><name sortKey="Johnson, W L" sort="Johnson, W L" uniqKey="Johnson W" first="W. L." last="Johnson">W. L. Johnson</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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