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arXiv 1301.2657cond-mat.supr-con
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Lu5Ir4Si10单晶的电荷密度波与超导性质

Charge Density Wave and Superconducting Properties in Single Crystals of Lu5Ir4Si10

Maxime Leroux, Pierre Rodiere, Christine Opagiste

摘要:

我们在高质量的Lu_5Ir_4Si_(10)单晶上测量了从2K到900K的电阻率。在电荷密度波(CDW)的起始处发现了明显的热滞后,证明了转变的一阶性质。当化合物中含有钽时,CDW被破坏,超导临界温度提高。最后,我们提出了比热和磁穿透深度在迈斯纳状态。我们表明,超导性质是非常接近的弱耦合BCS超导体。

英文摘要:

We measured the electrical resistivity from 2K up to 900K on high quality single crystals of Lu5Ir4Si10. A clear thermal hysteresis was found at the onset of the Charge Density Wave (CDW), evidencing the first order nature of the transition. When tantalum is included in the compound, the CDW is destroyed and the superconducting critical temperature is enhanced. Finally, we present specific heat and magnetic penetration depth in the Meissner state. We show that the superconducting properties are very close to a weak coupling BCS superconductor.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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