三元锗化铂超导体La2Pt3Ge5的正态电荷动力学

IF 0.2 Q4 PHYSICS, APPLIED

Progress in Superconductivity and Cryogenics Pub Date : 2015-12-31 DOI:10.9714/PSAC.2015.17.4.012

S. J. Song, N. Sung, B. Cho, S. Moon

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引用次数: 2

摘要

本文报道了稀土三元锗化铂超导体La2Pt3Ge5正常态电子响应的红外光谱研究。我们使用德鲁德-洛伦兹振子模型分析了温度相关的光学电导率谱。我们发现具有不同散射率的两个Drude响应需要解释10 K时的电荷动力学，而单个Drude模式可以再现更高温度下的远红外电导率。我们的结果表明了电子结构的双波段特征，并突出了两种电子态电动力学的不同温度演化。

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Normal-state charge dynamics of ternary platinum germanide superconductor La2Pt3Ge5

We report on the infrared spectroscopic studies of the normal-state electronic response of rare-earth ternary platinum germanide superconductor La2Pt3Ge5. We analyzed the temperature-dependent optical conductivity spectra using the Drude-Lorentz oscillator model. We found that the two Drude responses with distinct scattering rates are required to explain the charge dynamics at 10 K while a single Drude mode could reproduce the far-infrared conductivity at higher temperatures. Our results indicated the two-band character of the electronic structure and highlighted the disparate temperature evolution of the electrodynamics of the two electronic states.

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来源期刊

Progress in Superconductivity and Cryogenics PHYSICS, APPLIED-

CiteScore

0.40

自引率

33.30%

发文量

期刊介绍： Progress in Superconductivity and Cryogenics is the official publication of The Korea Institute of Applied Superconductivity and Cryogenics and the Korean Superconductivity Society. It was launched in 1999, and accepts original research articles and review papers on research on superconductivity and related fields of physics, electronic devices, materials science, large-scale applications for magnets, power and energy, and cryogenics. The Journal is published quarterly in March, June, September, and December each year. Supplemental issues are published occasionally. The official title of the journal is ''Progress in Superconductivity and Cryogenics'' and the abbreviated title is ''Prog. Supercond. Cryog.'' All submitted manuscripts are peer-reviewed by two reviewers. The text must be written in English. All the articles in this journal are KCI and SCOPUS as of 2015. The URL address of the journal is http://psac.kisac.org where full text is available. This work was supported by the Korean Federation of Science and Technology Societies grant funded by the Korea government.