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Normal-state charge dynamics of ternary platinum germanide superconductor La2Pt3Ge5

Title
Normal-state charge dynamics of ternary platinum germanide superconductor La2Pt3Ge5
Author
문순재
Keywords
La2Pt3Ge5; multiband; infrared spectroscopy; optical conductivity
Issue Date
2015-12
Publisher
Korea Institute of Applied Superconductivity and Cryogenics
Citation
Progress in Superconductivity and Cryogenics (PSAC)/Journal of the Korea Institute of Applied Superconductivity and Cryogenics, v. 17, NO 4, Page. 12-15
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. © 2013 PSAC. All rights reserved.
URI
http://www.earticle.net/Article.aspx?sn=261107http://hdl.handle.net/20.500.11754/29343
ISSN
1229-3008; 2287-6251
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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