Hybridization gap-open in CeIn3

C. I. Lee; K. E. Lee; Y. Y. Song; H. J. Im; S. Kimura; Y. S. Kwon

doi:10.1016/j.infrared.2007.12.021

Hybridization gap-open in CeIn₃

C. I. Lee
, K. E. Lee
, Y. Y. Song
, H. J. Im
, S. Kimura
, Y. S. Kwon

Department of Physics and Chemistry

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Reflectivity spectra of CeIn₃ are measured at 7, 30, 50, 100, 150, 200 and 300 K in wild energy regions from 6 meV to 30 eV. Optical conductivity spectra are obtained from a Kramers-Kronig' relation. A hump in the optical conductivity σ₁ is observed at about 500 cm^-1 below 100 K, resulting from strong hybridization between conduction electrons and Ce 4f electronic states. The low frequency plasmon indicating the existence of heavy particles is also observed below coherence temperature T^* ∼ 100 K.

Original language	English
Pages (from-to)	488-490
Number of pages	3
Journal	Infrared Physics and Technology
Volume	51
Issue number	5
DOIs	https://doi.org/10.1016/j.infrared.2007.12.021
State	Published - May 2008

Bibliographical note

Funding Information:
This work is supported by the Korea Science and Engineering Foundation through the Center for Strongly Correlated Materials Research (CSCMR) at Seoul National University, by Grant No. R01-2003-000-10095-0 from the Basic Research Program of the Korea Science and Engineering Foundation, and by Korea Research Foundation through Grant No. KRF-2005-070-C00044, and is performed for the Nuclear R&D Programs funded by the Ministry of Science & Technology (MOST) of Korea.

Keywords

CeIn
Hybridization gap
Optical conductivity

Access to Document

10.1016/j.infrared.2007.12.021

Cite this

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title = "Hybridization gap-open in CeIn3",

abstract = "Reflectivity spectra of CeIn3 are measured at 7, 30, 50, 100, 150, 200 and 300 K in wild energy regions from 6 meV to 30 eV. Optical conductivity spectra are obtained from a Kramers-Kronig' relation. A hump in the optical conductivity σ1 is observed at about 500 cm-1 below 100 K, resulting from strong hybridization between conduction electrons and Ce 4f electronic states. The low frequency plasmon indicating the existence of heavy particles is also observed below coherence temperature T* ∼ 100 K.",

keywords = "CeIn, Hybridization gap, Optical conductivity",

author = "Lee, \{C. I.\} and Lee, \{K. E.\} and Song, \{Y. Y.\} and Im, \{H. J.\} and S. Kimura and Kwon, \{Y. S.\}",

note = "Funding Information: This work is supported by the Korea Science and Engineering Foundation through the Center for Strongly Correlated Materials Research (CSCMR) at Seoul National University, by Grant No. R01-2003-000-10095-0 from the Basic Research Program of the Korea Science and Engineering Foundation, and by Korea Research Foundation through Grant No. KRF-2005-070-C00044, and is performed for the Nuclear R\&D Programs funded by the Ministry of Science \& Technology (MOST) of Korea.",

year = "2008",

month = may,

doi = "10.1016/j.infrared.2007.12.021",

language = "English",

volume = "51",

pages = "488--490",

journal = "Infrared Physics and Technology",

issn = "1350-4495",

publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Hybridization gap-open in CeIn3

AU - Lee, C. I.

AU - Lee, K. E.

AU - Song, Y. Y.

AU - Im, H. J.

AU - Kimura, S.

AU - Kwon, Y. S.

N1 - Funding Information: This work is supported by the Korea Science and Engineering Foundation through the Center for Strongly Correlated Materials Research (CSCMR) at Seoul National University, by Grant No. R01-2003-000-10095-0 from the Basic Research Program of the Korea Science and Engineering Foundation, and by Korea Research Foundation through Grant No. KRF-2005-070-C00044, and is performed for the Nuclear R&D Programs funded by the Ministry of Science & Technology (MOST) of Korea.

PY - 2008/5

Y1 - 2008/5

N2 - Reflectivity spectra of CeIn3 are measured at 7, 30, 50, 100, 150, 200 and 300 K in wild energy regions from 6 meV to 30 eV. Optical conductivity spectra are obtained from a Kramers-Kronig' relation. A hump in the optical conductivity σ1 is observed at about 500 cm-1 below 100 K, resulting from strong hybridization between conduction electrons and Ce 4f electronic states. The low frequency plasmon indicating the existence of heavy particles is also observed below coherence temperature T* ∼ 100 K.

AB - Reflectivity spectra of CeIn3 are measured at 7, 30, 50, 100, 150, 200 and 300 K in wild energy regions from 6 meV to 30 eV. Optical conductivity spectra are obtained from a Kramers-Kronig' relation. A hump in the optical conductivity σ1 is observed at about 500 cm-1 below 100 K, resulting from strong hybridization between conduction electrons and Ce 4f electronic states. The low frequency plasmon indicating the existence of heavy particles is also observed below coherence temperature T* ∼ 100 K.

KW - CeIn

KW - Hybridization gap

KW - Optical conductivity

UR - https://www.scopus.com/pages/publications/42649101317

U2 - 10.1016/j.infrared.2007.12.021

DO - 10.1016/j.infrared.2007.12.021

M3 - Article

AN - SCOPUS:42649101317

SN - 1350-4495

VL - 51

SP - 488

EP - 490

JO - Infrared Physics and Technology

JF - Infrared Physics and Technology

IS - 5

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