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Normal-state charge dynamics of ternary platinum germanide superconductor La2Pt3Ge5open access
- Authors
- Song, SJ; Sung, NH; Cho, BK; Moon, Soon Jae
- Issue Date
- Dec-2015
- Publisher
- KOREA INST APPLIED SUPERCONDUCTIVITY & CRYOGENICS
- Keywords
- La2Pt3Ge5; multiband; infrared spectroscopy; optical conductivity
- Citation
- PROGRESS IN SUPERCONDUCTIVITY AND CRYOGENICS, v.17, no.4, pp.12 - 15
- Indexed
- SCOPUS
KCI
- Journal Title
- PROGRESS IN SUPERCONDUCTIVITY AND CRYOGENICS
- Volume
- 17
- Number
- 4
- Start Page
- 12
- End Page
- 15
- ISSN
- 1229-3008
- Abstract
- 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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Related Researcher
- Moon, Soon jae
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)