Resonant angle-resolved photoemission study of heavy fermion material CeRu2Si2

H. Kumigashira; T. Ito; T. Takahashi; A. Kaminski; J. C. Campuzano; Y. Onuki

doi:10.1016/S0921-4526(01)01216-9

Resonant angle-resolved photoemission study of heavy fermion material CeRu₂Si₂

H. Kumigashira, T. Ito, T. Takahashi, A. Kaminski, J. C. Campuzano, Y. Onuki

Research output: Contribution to journal › Conference article

1 Citation (Scopus)

Abstract

Resonant angle-resolved photoemission spectroscopy has been performed on a heavy fermion material CeRu₂Si₂ at the 4d-4f core threshold. The angle-resolved photoemission spectra display a sharp peak at E_F which shows a remarkable intensity variation as a function of momentum, suggesting an energy dispersion of the Kondo resonance state above E_F. On increasing temperature, the peak intensity is rapidly suppressed, while it persists up to a temperature much higher than the Kondo temperature.

Original language	English
Pages (from-to)	658-659
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	312-313
DOIs	https://doi.org/10.1016/S0921-4526(01)01216-9
Publication status	Published - 2002 Mar 1
Event	International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States Duration: 2002 Aug 6 → 2002 Aug 6

Keywords

CeRuSi
Heavy fermion
Photoemission

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(01)01216-9

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Kumigashira, H., Ito, T., Takahashi, T., Kaminski, A., Campuzano, J. C., & Onuki, Y. (2002). Resonant angle-resolved photoemission study of heavy fermion material CeRu₂Si₂. Physica B: Condensed Matter, 312-313, 658-659. https://doi.org/10.1016/S0921-4526(01)01216-9

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title = "Resonant angle-resolved photoemission study of heavy fermion material CeRu2Si2",

abstract = "Resonant angle-resolved photoemission spectroscopy has been performed on a heavy fermion material CeRu2Si2 at the 4d-4f core threshold. The angle-resolved photoemission spectra display a sharp peak at EF which shows a remarkable intensity variation as a function of momentum, suggesting an energy dispersion of the Kondo resonance state above EF. On increasing temperature, the peak intensity is rapidly suppressed, while it persists up to a temperature much higher than the Kondo temperature.",

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author = "H. Kumigashira and T. Ito and T. Takahashi and A. Kaminski and Campuzano, {J. C.} and Y. Onuki",

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T1 - Resonant angle-resolved photoemission study of heavy fermion material CeRu2Si2

AU - Kumigashira, H.

AU - Ito, T.

AU - Takahashi, T.

AU - Kaminski, A.

AU - Campuzano, J. C.

AU - Onuki, Y.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - Resonant angle-resolved photoemission spectroscopy has been performed on a heavy fermion material CeRu2Si2 at the 4d-4f core threshold. The angle-resolved photoemission spectra display a sharp peak at EF which shows a remarkable intensity variation as a function of momentum, suggesting an energy dispersion of the Kondo resonance state above EF. On increasing temperature, the peak intensity is rapidly suppressed, while it persists up to a temperature much higher than the Kondo temperature.

AB - Resonant angle-resolved photoemission spectroscopy has been performed on a heavy fermion material CeRu2Si2 at the 4d-4f core threshold. The angle-resolved photoemission spectra display a sharp peak at EF which shows a remarkable intensity variation as a function of momentum, suggesting an energy dispersion of the Kondo resonance state above EF. On increasing temperature, the peak intensity is rapidly suppressed, while it persists up to a temperature much higher than the Kondo temperature.

KW - CeRuSi

KW - Heavy fermion

KW - Photoemission

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SP - 658

EP - 659

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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T2 - International Conference on Strongly Correlated Electrons

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