Superconductivity in LaPd2Al2-xGax compounds

被引:14
作者
Klicpera, M. [1 ]
Pasztorova, J. [1 ,2 ]
Javorsky, P. [1 ]
机构
[1] Charles Univ Prague, Fac Math & Phys, Dept Condensed Matter Phys, CR-12116 Prague 2, Czech Republic
[2] Safarik Univ, Dept Condensed Matter Phys, Kosice 04154, Slovakia
关键词
unconventional superconductivity; La-based intermetallics; electrical resistivity; specific heat; PRESSURE; LA;
D O I
10.1088/0953-2048/27/8/085001
中图分类号
O59 [应用物理学];
学科分类号
摘要
The superconductivity in LaPd2Al2-xGax compounds was studied by means of electrical resistivity and specific heat measurements. The concentration development of the superconducting properties was revealed. The measured data deviate significantly from the Bardeen-Cooper-Schrieffer theory predictions and are discussed in the context of unconventional superconductivity. The electronic specific heat below T-SC follows almost quadratic temperature dependence, which might indicate an axial state with line nodes in the superconducting gap structure.
引用
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页数:6
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