Prediction of phonon-mediated superconductivity in new Ti-based M[Formula: see text]AX phases.
Prediction of phonon-mediated superconductivity in new Ti-based M[Formula: see text]AX phases.
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DOI:
10.1038/s41598-022-17539-8
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发表时间:
2022-08-01
影响因子:
4.6
通讯作者:
Probert, M. I. J.
中科院分区:
文献类型:
--
作者:
Karaca, E.;Byrne, P. J. P.;Hasnip, P. J.;Probert, M. I. J.
A high-throughput computational method is used to predict 39 new superconductors in the Ti-based MAX phases, and the best candidates are then studied in more detail using density functional theory electron–phonon coupling calculations. The detailed calculations agree with the simple predictions, and TiAlX (X: B, C and N) materials are predicted to have higher values of than any currently known hexagonal MAX phases. The electronic states at the Fermi level are dominated by the Ti 3d states. The choice of X (X: B, C and N) has a significant impact on the electronic density of states but not on the phonon characteristics. The electron–phonon coupling parameter for TiAlX (X: B, C and N) was determined to be 0.685, 0.743 and 0.775 with a predicted of 7.8 K, 10.8 K and 13.0 K, respectively.
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影响因子:
2.7
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通讯作者:
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影响因子:
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Bortolozo, Ausdinir D.;Cremasco, Alessandra;Contieri, Rodrigo J.
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影响因子:
2.6
作者:
Karaca, E.;Byrne, P. J. P.;Probert, M. I. J.
通讯作者:
Probert, M. I. J.
影响因子:
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通讯作者:
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FROHLICH, H
通讯作者:
FROHLICH, H