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Superconductivity of 1212-type phase TlSr2(Ca,Cr)Cu2O7 and TlSr2(Sr,Tm)Cu2O7

Identifieur interne : 003266 ( Main/Exploration ); précédent : 003265; suivant : 003267

Superconductivity of 1212-type phase TlSr2(Ca,Cr)Cu2O7 and TlSr2(Sr,Tm)Cu2O7

Auteurs : R. Abd-Shukor [Malaisie] ; C. T. Quah

Source :

RBID : Pascal:94-0495536

Descripteurs français

English descriptors

Abstract

Samples with nominal starting compositions TlSr2(Ca1-xCrx)Cu2O7 and TlSr2(Sr1-xTmx)Cu2O7 were prepared and investigated by electrical resistivity and X-ray powder diffraction methods. Most of the samples have 1212 as the major phase and 1201 as the minor phase. TlSr2(Ca1-xCrx)Cu2O7 with x=0 exhibited a non-supercouducting metallic behaviour down to 60 K


Affiliations:


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Le document en format XML

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<title xml:lang="en" level="a">Superconductivity of 1212-type phase TlSr
<sub>2</sub>
(Ca,Cr)Cu
<sub>2</sub>
O
<sub>7</sub>
and TlSr
<sub>2</sub>
(Sr,Tm)Cu
<sub>2</sub>
O
<sub>7</sub>
</title>
<author>
<name sortKey="Abd Shukor, R" sort="Abd Shukor, R" uniqKey="Abd Shukor R" first="R." last="Abd-Shukor">R. Abd-Shukor</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>Univ. Kebangsaan Malaysia, dep. physics</s1>
<s2>43600 Bangi</s2>
<s3>MYS</s3>
</inist:fA14>
<country>Malaisie</country>
<wicri:noRegion>43600 Bangi</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Quah, C T" sort="Quah, C T" uniqKey="Quah C" first="C. T." last="Quah">C. T. Quah</name>
</author>
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<title xml:lang="en" level="a">Superconductivity of 1212-type phase TlSr
<sub>2</sub>
(Ca,Cr)Cu
<sub>2</sub>
O
<sub>7</sub>
and TlSr
<sub>2</sub>
(Sr,Tm)Cu
<sub>2</sub>
O
<sub>7</sub>
</title>
<author>
<name sortKey="Abd Shukor, R" sort="Abd Shukor, R" uniqKey="Abd Shukor R" first="R." last="Abd-Shukor">R. Abd-Shukor</name>
<affiliation wicri:level="1">
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<s1>Univ. Kebangsaan Malaysia, dep. physics</s1>
<s2>43600 Bangi</s2>
<s3>MYS</s3>
</inist:fA14>
<country>Malaisie</country>
<wicri:noRegion>43600 Bangi</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Quah, C T" sort="Quah, C T" uniqKey="Quah C" first="C. T." last="Quah">C. T. Quah</name>
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<series>
<title level="j" type="main">Materials science & engineering. B, Solid-state materials for advanced technology</title>
<title level="j" type="abbreviated">Mater. sci. eng. B, Solid-state mater. adv. technol.</title>
</series>
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<title level="j" type="main">Materials science & engineering. B, Solid-state materials for advanced technology</title>
<title level="j" type="abbreviated">Mater. sci. eng. B, Solid-state mater. adv. technol.</title>
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<keywords scheme="KwdEn" xml:lang="en">
<term>Calcium oxides</term>
<term>Chromium oxides</term>
<term>Copper oxides</term>
<term>Cuprates</term>
<term>Electric conductivity</term>
<term>Electric resistivity</term>
<term>Electrical properties</term>
<term>Experimental study</term>
<term>High-Tc superconductors</term>
<term>Strontium oxides</term>
<term>Superconductivity</term>
<term>Superconductors</term>
<term>Thallium oxides</term>
<term>Thulium oxides</term>
<term>X-ray diffraction</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Supraconductivité</term>
<term>Diffraction RX</term>
<term>Supraconducteur</term>
<term>Propriété électrique</term>
<term>Conductivité électrique</term>
<term>Thallium oxyde</term>
<term>Calcium oxyde</term>
<term>Strontium oxyde</term>
<term>Chrome oxyde</term>
<term>Cuivre oxyde</term>
<term>Thulium oxyde</term>
<term>Cuprate</term>
<term>Supraconducteur haute température</term>
<term>Résistivité électrique</term>
<term>Etude expérimentale</term>
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<front>
<div type="abstract" xml:lang="en">Samples with nominal starting compositions TlSr
<sub>2</sub>
(Ca
<sub>1-x</sub>
Cr
<sub>x</sub>
)Cu
<sub>2</sub>
O
<sub>7</sub>
and TlSr
<sub>2</sub>
(Sr
<sub>1-x</sub>
Tm
<sub>x</sub>
)Cu
<sub>2</sub>
O
<sub>7</sub>
were prepared and investigated by electrical resistivity and X-ray powder diffraction methods. Most of the samples have 1212 as the major phase and 1201 as the minor phase. TlSr
<sub>2</sub>
(Ca
<sub>1-x</sub>
Cr
<sub>x</sub>
)Cu
<sub>2</sub>
O
<sub>7</sub>
with x=0 exhibited a non-supercouducting metallic behaviour down to 60 K</div>
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<li>Malaisie</li>
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<name sortKey="Quah, C T" sort="Quah, C T" uniqKey="Quah C" first="C. T." last="Quah">C. T. Quah</name>
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<name sortKey="Abd Shukor, R" sort="Abd Shukor, R" uniqKey="Abd Shukor R" first="R." last="Abd-Shukor">R. Abd-Shukor</name>
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</tree>
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