Doubling the critical temperature of La1.9 Sr0.1 CuO4 using epitaxial strain
Тип публикации: Journal Article
Дата публикации: 1998-07-01
scimago Q1
wos Q1
БС1
SJR: 18.288
CiteScore: 78.1
Impact factor: 48.5
ISSN: 00280836, 14764687
Multidisciplinary
Краткое описание
The discovery1 of high-temperature superconductivity in copper oxides raised the possibility that superconductivity could be achieved at room temperature. But since 1993, when a critical temperature (T c) of 133 K was observed in the HgBa2Ca2Cu3O8+δ (ref. 2), no further progress has been made in raising the critical temperature through material design. It has been shown, however, that the application of hydrostatic pressure can raise T c — up to ∼164 K in the case of HgBa2Ca2Cu3O8+δ (ref. 3). Here we show, by analysing the uniaxial strain and pressure derivatives of T c, that compressive epitaxial strain in thin films of copper oxide superconductors could in principle generate much larger increases in the critical temperature than obtained by comparable hydrostatic pressures. We demonstrate the experimental feasibility of this approach for the compound La1.9Sr0.1CuO4, where we obtain a critical temperature of 49 K in strained single-crystal thin films — roughly double the bulk value of 25 K. Furthermore, the resistive behaviour at low temperatures (but above T c) of the strained samples changes markedly, going from insulating to metallic.
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Locquet J. et al. Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain // Nature. 1998. Vol. 394. No. 6692. pp. 453-456.
ГОСТ со всеми авторами (до 50)
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Locquet J., Perret J., Fompeyrine J., Mächler E., Seo J. W., Van Tendeloo G. Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain // Nature. 1998. Vol. 394. No. 6692. pp. 453-456.
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TY - JOUR
DO - 10.1038/28810
UR - https://doi.org/10.1038/28810
TI - Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain
T2 - Nature
AU - Locquet, J.-P.
AU - Perret, J
AU - Fompeyrine, J.
AU - Mächler, E.
AU - Seo, J. W.
AU - Van Tendeloo, G.
PY - 1998
DA - 1998/07/01
PB - Springer Nature
SP - 453-456
IS - 6692
VL - 394
SN - 0028-0836
SN - 1476-4687
ER -
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@article{1998_Locquet,
author = {J.-P. Locquet and J Perret and J. Fompeyrine and E. Mächler and J. W. Seo and G. Van Tendeloo},
title = {Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain},
journal = {Nature},
year = {1998},
volume = {394},
publisher = {Springer Nature},
month = {jul},
url = {https://doi.org/10.1038/28810},
number = {6692},
pages = {453--456},
doi = {10.1038/28810}
}
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Locquet, J.-P., et al. “Doubling the critical temperature of La1.9Sr0.1CuO4 using epitaxial strain.” Nature, vol. 394, no. 6692, Jul. 1998, pp. 453-456. https://doi.org/10.1038/28810.