Cited 5 time in webofscience Cited 6 time in scopus

Evidence of charge-density waves in the optical properties of SmNiC2

Title
Evidence of charge-density waves in the optical properties of SmNiC2
Authors
Ahmad, D[Ahmad, D.]Min, BH[Min, Byeon Hun]Min, GI[Min, Gyeon Im]Kimura, SI[Kimura, Shin-Ichi]Seo, J[Seo, Jungpil]Kwon, YS[Kwon, Yong Seung]
DGIST Authors
Ahmad, D[Ahmad, D.]; Min, BH[Min, Byeon Hun]; Seo, J[Seo, Jungpil]Kwon, YS[Kwon, Yong Seung]
Issue Date
2015-12
Citation
Physica Status Solidi B: Basic Solid State Physics, 252(12), 2662-2666
Type
Article
Article Type
Article
Keywords
Charge Density Wave (CDW)Optical ConductivitySmNiC2
ISSN
0370-1972
Abstract
In this study, we have measured the optical reflectivity spectra of low-dimensional SmNiC2 (TC=18.5 K and TCDW=151 K) in the terahertz to ultraviolet frequency range at various temperatures. The optical conductivity spectra were transformed from the reflectivity data using the Kramers-Kronig relation. The optical conductivity of the normal state is well described by the Drude-Lorentz model assuming two bands. In nonmagnetic states below TCDW, two clean gaps opening on top of the Drude response are observed at around 500 and 750 cm-1. In the ferromagnetic state, the higher-side gap opening remains at the same frequency but the lower-side gap opening disappears, instead an additional absorption due to magnon gap formation is observed at around 70 cm-1. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
URI
http://hdl.handle.net/20.500.11750/2806
DOI
10.1002/pssb.201552005
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Seo, Jung Pil Nanospm Lab(Quantum Physics Research Group)
  • Research Interests Topological Matters; High Tc Superconductors; Low dimensional Quantum Matters
Files:
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Collection:
Department of Emerging Materials ScienceNanospm Lab(Quantum Physics Research Group)1. Journal Articles
Department of Emerging Materials ScienceQuantum Functional Materials Laboratory1. Journal Articles


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