| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mizuguchi, Yoshikazu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2022Superconductivity of high-entropy-alloy-type transition-metal zirconide (Fe,Co,Ni,Cu,Ga)Zr2citations
- 2022Robustness of superconductivity to external pressure in high-entropy-alloy-type metal telluride AgInSnPbBiTe5citations
- 2022Fabrication of high-entropy REBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub>−δ thin films by pulsed laser depositioncitations
- 2018Superconductivity in HEA-Type Compounds
- 2011Intrinsic phase separation in superconducting K0.8Fe1.6Se2 (T-c=31.8 K) single crystalscitations
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article
Superconductivity of high-entropy-alloy-type transition-metal zirconide (Fe,Co,Ni,Cu,Ga)Zr2
Abstract
<jats:title>Abstract</jats:title><jats:p>We synthesized a new high-entropy-alloy-type (HEA-type) superconductor (Fe,Co,Ni,Cu,Ga)Zr<jats:sub>2</jats:sub> with a <jats:italic>T</jats:italic><jats:sub>c</jats:sub> of 2.9 K. The EDX analyses revealed that the actual composition of the transition-metal site (<jats:italic>Tr</jats:italic>-site) is <jats:italic>Tr</jats:italic> = Fe<jats:sub>0.17(1)</jats:sub>Co<jats:sub>0.18(2)</jats:sub>Ni<jats:sub>0.21(2)</jats:sub>Cu<jats:sub>0.25(1)</jats:sub>Ga<jats:sub>0.19(1)</jats:sub>, which gives the configurational entropy of mixing Δ<jats:italic>S</jats:italic><jats:sub>mix</jats:sub> = 1.60 <jats:italic>R</jats:italic> for the <jats:italic>Tr</jats:italic> site. Neutron powder diffraction revealed that the sample has a tetragonal CuAl<jats:sub>2</jats:sub>-type (space group: #140). The lattice constant of <jats:italic>a</jats:italic> monotonically decreases with decreasing temperature, but the lattice constant of <jats:italic>c</jats:italic> does not exhibit a clear shrinkage. Isotropic displacement parameter for both the <jats:italic>Tr</jats:italic> and Zr sites are large, which is probably caused by the HEA-type <jats:italic>Tr</jats:italic> site. The small temperature dependences of <jats:italic>U</jats:italic><jats:sub>iso</jats:sub> for both sites also indicate the presence of the local structural disorder in (Fe,Co,Ni,Cu,Ga)Zr<jats:sub>2</jats:sub>. From electrical resistivity, magnetic susceptibility, and specific heat measurements, bulk superconductivity was confirmed.</jats:p>