论文标题
六边形NB-MO-RU-RH-PD高渗透合金中的超导性
Superconductivity in hexagonal Nb-Mo-Ru-Rh-Pd high-entropy alloys
论文作者
论文摘要
我们报告了新的十六角州NB $ _ {10+2x} $ MO $ $ $ $ _ {35-X} $ RU $ _ {35-X} $ RH $ _ {10} $ PD $ _ {10} $ high-entropy alloys（heas）随着$ x $的增加，超导过渡温度$ t _ {\ rm c} $显示最多6.19 k，在$ x $ = 2.5时，而零含量的上临界场$ b _ {\ rm c2} $（rm c2} $（0）单调地增加了$ x $ x $ = 5。 Bardeen-Cooper-Schreiffer行为。此外，我们表明，这些HEAS的$ t _ {\ rm c} $并非主要取决于费米级别的状态密度，并且通过降低价电子浓度来增强。
We report the superconducting properties of new hexagonal Nb$_{10+2x}$Mo$_{35-x}$Ru$_{35-x}$Rh$_{10}$Pd$_{10}$ high-entropy alloys (HEAs) (0 $\leq$ $x$ $\leq$ 5). With increasing $x$, the superconducting transition temperature $T_{\rm c}$ shows a maximum of 6.19 K at $x$ = 2.5, while the zero-temperature upper critical field $B_{\rm c2}$(0) increases monotonically, reaching 8.3 T at $x$ = 5. For all $x$ values, the specific heat jump deviates from the Bardeen-Cooper-Schreiffer behavior. In addition, we show that $T_{\rm c}$ of these HEAs is not determined mainly by the density of states at the Fermi level and would be enhanced by lowering the valence electron concentration.
