Hybridization gap collapse at a quantum critical point of CeNi1 - x Cox Ge2

Y. S. Kwon; K. E. Lee; M. A. Jung; E. Y. Song; H. J. Oh; H. J. Im; S. Kimura

doi:10.1016/j.jmmm.2006.10.511

Hybridization gap collapse at a quantum critical point of CeNi_{1 - x} Co_x Ge₂

Y. S. Kwon
, K. E. Lee
, M. A. Jung
, E. Y. Song
, H. J. Oh
, H. J. Im
, S. Kimura

Department of Physics and Chemistry

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

1 Scopus citations

Abstract

Using infrared spectroscopy optical properties of CeNi_{1 - x} Co_x Ge₂ (0 ≤ x ≤ 1) have been studied. Tuning the Co-doping concentration reveals clear demarcation in the optical properties due to the collapse of heavy electron Fermi surface at the quantum critical point x = 0.3.

Original language	English
Pages (from-to)	310-312
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 1
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.511
State	Published - Mar 2007

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, by Korea Research Foundation through Grant no. KRF-2005-070-C00044, and is performed for the Nuclear RD Programs funded by the Ministry of Science Technology(MOST) of Korea.

Keywords

CeNi Co Ge
Heavy fermion
Hybridization gap
Optical properties
Quantum criticality

Access to Document

10.1016/j.jmmm.2006.10.511

Cite this

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title = "Hybridization gap collapse at a quantum critical point of CeNi1 - x Cox Ge2",

abstract = "Using infrared spectroscopy optical properties of CeNi1 - x Cox Ge2 (0 ≤ x ≤ 1) have been studied. Tuning the Co-doping concentration reveals clear demarcation in the optical properties due to the collapse of heavy electron Fermi surface at the quantum critical point x = 0.3.",

keywords = "CeNi Co Ge, Heavy fermion, Hybridization gap, Optical properties, Quantum criticality",

author = "Kwon, \{Y. S.\} and Lee, \{K. E.\} and Jung, \{M. A.\} and Song, \{E. Y.\} and Oh, \{H. J.\} and Im, \{H. J.\} and S. Kimura",

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, by Korea Research Foundation through Grant no. KRF-2005-070-C00044, and is performed for the Nuclear RD Programs funded by the Ministry of Science Technology(MOST) of Korea.",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.511",

language = "English",

volume = "310",

pages = "310--312",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

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TY - JOUR

T1 - Hybridization gap collapse at a quantum critical point of CeNi1 - x Cox Ge2

AU - Kwon, Y. S.

AU - Lee, K. E.

AU - Jung, M. A.

AU - Song, E. Y.

AU - Oh, H. J.

AU - Im, H. J.

AU - Kimura, 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, by Korea Research Foundation through Grant no. KRF-2005-070-C00044, and is performed for the Nuclear RD Programs funded by the Ministry of Science Technology(MOST) of Korea.

PY - 2007/3

Y1 - 2007/3

N2 - Using infrared spectroscopy optical properties of CeNi1 - x Cox Ge2 (0 ≤ x ≤ 1) have been studied. Tuning the Co-doping concentration reveals clear demarcation in the optical properties due to the collapse of heavy electron Fermi surface at the quantum critical point x = 0.3.

AB - Using infrared spectroscopy optical properties of CeNi1 - x Cox Ge2 (0 ≤ x ≤ 1) have been studied. Tuning the Co-doping concentration reveals clear demarcation in the optical properties due to the collapse of heavy electron Fermi surface at the quantum critical point x = 0.3.

KW - CeNi Co Ge

KW - Heavy fermion

KW - Hybridization gap

KW - Optical properties

KW - Quantum criticality

UR - https://www.scopus.com/pages/publications/33847308725

U2 - 10.1016/j.jmmm.2006.10.511

DO - 10.1016/j.jmmm.2006.10.511

M3 - Article

AN - SCOPUS:33847308725

SN - 0304-8853

VL - 310

SP - 310

EP - 312

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2 SUPPL. PART 1

ER -