Unconventional superconducting phase in the weakly correlated noncentrosymmetric Mo(3)Al(2)C compound
文献类型:期刊论文
作者 | E. Bauer ; G. Rogl ; X. Q. Chen ; R. T. Khan ; H. Michor ; G. Hilscher ; E. Royanian ; K. Kumagai ; D. Z. Li ; Y. Y. Li ; R. Podloucky ; P. Rogl |
刊名 | Physical Review B
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出版日期 | 2010 |
卷号 | 82期号:6 |
关键词 | inversion symmetry temperature field spin |
ISSN号 | 1098-0121 |
中文摘要 | Electrical resistivity, specific-heat, and NMR measurements classify noncentrosymmetric Mo(3)Al(2)C (beta-Mn type, space group P4(1)32) as a strong-coupled superconductor with T(c)=9 K deviating notably from BCS-type behavior. The absence of a Hebbel-Slichter peak, a power-law behavior of the spin-lattice relaxation rate (from (27)Al NMR), an electronic specific heat strongly deviating from BCS model and a pressure enhanced T(c) suggest unconventional superconductivity with possibly a nodal structure of the superconducting gap. Relativistic density-functional theory calculations reveal a splitting of degenerate electronic bands due to the asymmetric spin-orbit coupling, favoring a mix of spin-singlet and spin-triplet components in the superconducting condensate, in absence of strong correlations among electrons. |
原文出处 | |
公开日期 | 2012-04-13 |
源URL | [http://210.72.142.130/handle/321006/31011] ![]() |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | E. Bauer,G. Rogl,X. Q. Chen,et al. Unconventional superconducting phase in the weakly correlated noncentrosymmetric Mo(3)Al(2)C compound[J]. Physical Review B,2010,82(6). |
APA | E. Bauer.,G. Rogl.,X. Q. Chen.,R. T. Khan.,H. Michor.,...&P. Rogl.(2010).Unconventional superconducting phase in the weakly correlated noncentrosymmetric Mo(3)Al(2)C compound.Physical Review B,82(6). |
MLA | E. Bauer,et al."Unconventional superconducting phase in the weakly correlated noncentrosymmetric Mo(3)Al(2)C compound".Physical Review B 82.6(2010). |
入库方式: OAI收割
来源:金属研究所
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