@article{Choi2019-04strai-48455,
  year={2019},
  doi={10.1126/sciadv.aav5532},
  title={3D strain-induced superconductivity in La<sub>2</sub>CuO<sub>4+δ</sub> using a simple vertically aligned nanocomposite approach},
  number={4},
  volume={5},
  journal={Science Advances},
  author={Choi, Eun-Mi and Di Bernardo, Angelo and Zhu, Bonan and Lu, Ping and Alpern, Hen and Zhang, Kelvin H. L. and Shapira, Tamar and Feighan, John and Sun, Xing and MacManus-Driscoll, Judith L.},
  note={Article Number: eaav5532}
}

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    <dc:creator>Lu, Ping</dc:creator>
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    <dc:creator>Feighan, John</dc:creator>
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    <dc:creator>Sun, Xing</dc:creator>
    <dcterms:title>3D strain-induced superconductivity in La&lt;sub&gt;2&lt;/sub&gt;CuO&lt;sub&gt;4+δ&lt;/sub&gt; using a simple vertically aligned nanocomposite approach</dcterms:title>
    <dc:creator>Di Bernardo, Angelo</dc:creator>
    <dc:creator>Zhu, Bonan</dc:creator>
    <dc:creator>Shapira, Tamar</dc:creator>
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    <dc:contributor>Choi, Eun-Mi</dc:contributor>
    <dc:contributor>Sun, Xing</dc:contributor>
    <dc:contributor>Zhang, Kelvin H. L.</dc:contributor>
    <dcterms:issued>2019-04</dcterms:issued>
    <dcterms:abstract xml:lang="eng">A long-term goal for superconductors is to increase the superconducting transition temperature, T&lt;sub&gt;C&lt;/sub&gt;. In cuprates, T&lt;sub&gt;C&lt;/sub&gt; depends strongly on the out-of-plane Cu-apical oxygen distance and the in-plane Cu-O distance, but there has been little attention paid to tuning them independently. Here, in simply grown, self-assembled, vertically aligned nanocomposite thin films of La&lt;sub&gt;2&lt;/sub&gt;CuO&lt;sub&gt;4+δ&lt;/sub&gt; + LaCuO&lt;sub&gt;3&lt;/sub&gt;, by strongly increasing out-of-plane distances without reducing in-plane distances (three-dimensional strain engineering), we achieve superconductivity up to 50 K in the vertical interface regions, spaced ~50 nm apart. No additional process to supply excess oxygen, e.g., by ozone or high-pressure oxygen annealing, was required, as is normally the case for plain La&lt;sub&gt;2&lt;/sub&gt;CuO&lt;sub&gt;4+δ&lt;/sub&gt; films. Our proof-of-concept work represents an entirely new approach to increasing TC in cuprates or other superconductors.</dcterms:abstract>
    <dc:creator>Choi, Eun-Mi</dc:creator>
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