Low-energy electronic structure of the Kondo insulator YbB12

T. Susaki, A. Sekiyama, K. Kobayashi, Takashi Mizokawa, A. Fujimori, M. Tsunekawa, T. Muro, T. Matsushita, S. Suga, H. Ishii, T. Hanyu, A. Kimura, H. Namatame, M. Taniguchi, T. Miyahara, F. Iga, M. Kasaya, H. Harima

研究成果: Article

57 引用 (Scopus)

抄録

We have studied the low-energy electronic structure of a Kondo insulator YbB12 by high-resolution photoemission spectroscopy. A "Kondo peak" is observed ∼25 meV below the Fermi level, which agrees well with the Kondo temperature, whereas the gap at the Fermi level is found much smaller, indicating that the magnetic properties at higher temperatures (75 K) are indeed determined by the Kondo effect in spite of the gap formation at lower temperatures. A renormalized band picture is presented to describe the coexistence of the Kondo peak and the transport gap as well as the highly asymmetric line shape of the Kondo peak.

元の言語English
ページ(範囲)4269-4272
ページ数4
ジャーナルPhysical Review Letters
77
発行部数20
出版物ステータスPublished - 1996
外部発表Yes

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insulators
electronic structure
Kondo effect
line shape
energy
photoelectric emission
magnetic properties
high resolution
spectroscopy
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Susaki, T., Sekiyama, A., Kobayashi, K., Mizokawa, T., Fujimori, A., Tsunekawa, M., ... Harima, H. (1996). Low-energy electronic structure of the Kondo insulator YbB12. Physical Review Letters, 77(20), 4269-4272.

Low-energy electronic structure of the Kondo insulator YbB12. / Susaki, T.; Sekiyama, A.; Kobayashi, K.; Mizokawa, Takashi; Fujimori, A.; Tsunekawa, M.; Muro, T.; Matsushita, T.; Suga, S.; Ishii, H.; Hanyu, T.; Kimura, A.; Namatame, H.; Taniguchi, M.; Miyahara, T.; Iga, F.; Kasaya, M.; Harima, H.

:: Physical Review Letters, 巻 77, 番号 20, 1996, p. 4269-4272.

研究成果: Article

Susaki, T, Sekiyama, A, Kobayashi, K, Mizokawa, T, Fujimori, A, Tsunekawa, M, Muro, T, Matsushita, T, Suga, S, Ishii, H, Hanyu, T, Kimura, A, Namatame, H, Taniguchi, M, Miyahara, T, Iga, F, Kasaya, M & Harima, H 1996, 'Low-energy electronic structure of the Kondo insulator YbB12', Physical Review Letters, 巻. 77, 番号 20, pp. 4269-4272.
Susaki T, Sekiyama A, Kobayashi K, Mizokawa T, Fujimori A, Tsunekawa M その他. Low-energy electronic structure of the Kondo insulator YbB12. Physical Review Letters. 1996;77(20):4269-4272.
Susaki, T. ; Sekiyama, A. ; Kobayashi, K. ; Mizokawa, Takashi ; Fujimori, A. ; Tsunekawa, M. ; Muro, T. ; Matsushita, T. ; Suga, S. ; Ishii, H. ; Hanyu, T. ; Kimura, A. ; Namatame, H. ; Taniguchi, M. ; Miyahara, T. ; Iga, F. ; Kasaya, M. ; Harima, H. / Low-energy electronic structure of the Kondo insulator YbB12. :: Physical Review Letters. 1996 ; 巻 77, 番号 20. pp. 4269-4272.
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T1 - Low-energy electronic structure of the Kondo insulator YbB12

AU - Susaki, T.

AU - Sekiyama, A.

AU - Kobayashi, K.

AU - Mizokawa, Takashi

AU - Fujimori, A.

AU - Tsunekawa, M.

AU - Muro, T.

AU - Matsushita, T.

AU - Suga, S.

AU - Ishii, H.

AU - Hanyu, T.

AU - Kimura, A.

AU - Namatame, H.

AU - Taniguchi, M.

AU - Miyahara, T.

AU - Iga, F.

AU - Kasaya, M.

AU - Harima, H.

PY - 1996

Y1 - 1996

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