Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi2B2C

T. Baba, Takayoshi Yokoya, S. Tsuda, T. Kiss, T. Shimojima, K. Ishizaka, H. Takeya, K. Hirata, T. Watanabe, Minoru Nohara, H. Takagi, N. Nakai, K. Machida, T. Togashi, S. Watanabe, X. Y. Wang, C. T. Chen, S. Shin

Research output: Contribution to journalArticle

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Abstract

We have performed temperature- (T-)dependent laser-photoemission spectroscopy of the antiferromagnetic (AF) superconductor ErNi2B2C to study the electronic-structure evolution reflecting the interplay between antiferromagnetism and superconductivity. The spectra at the superconducting (SC) phase show a very broad spectral shape. A T-dependent SC gap shows a sudden deviation from the BCS prediction just below TN. This observation can be explained well by the theoretical model and thus represents the characteristic bulk electronic structure of the AF SC phase for the first time.

Original languageEnglish
Article number017003
JournalPhysical Review Letters
Volume100
Issue number1
DOIs
Publication statusPublished - Jan 8 2008

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electronic structure
antiferromagnetism
photoelectric emission
superconductivity
deviation
predictions
spectroscopy
lasers
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi2B2C. / Baba, T.; Yokoya, Takayoshi; Tsuda, S.; Kiss, T.; Shimojima, T.; Ishizaka, K.; Takeya, H.; Hirata, K.; Watanabe, T.; Nohara, Minoru; Takagi, H.; Nakai, N.; Machida, K.; Togashi, T.; Watanabe, S.; Wang, X. Y.; Chen, C. T.; Shin, S.

In: Physical Review Letters, Vol. 100, No. 1, 017003, 08.01.2008.

Research output: Contribution to journalArticle

Baba, T, Yokoya, T, Tsuda, S, Kiss, T, Shimojima, T, Ishizaka, K, Takeya, H, Hirata, K, Watanabe, T, Nohara, M, Takagi, H, Nakai, N, Machida, K, Togashi, T, Watanabe, S, Wang, XY, Chen, CT & Shin, S 2008, 'Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi2B2C', Physical Review Letters, vol. 100, no. 1, 017003. https://doi.org/10.1103/PhysRevLett.100.017003
Baba, T. ; Yokoya, Takayoshi ; Tsuda, S. ; Kiss, T. ; Shimojima, T. ; Ishizaka, K. ; Takeya, H. ; Hirata, K. ; Watanabe, T. ; Nohara, Minoru ; Takagi, H. ; Nakai, N. ; Machida, K. ; Togashi, T. ; Watanabe, S. ; Wang, X. Y. ; Chen, C. T. ; Shin, S. / Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi2B2C. In: Physical Review Letters. 2008 ; Vol. 100, No. 1.
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AU - Baba, T.

AU - Yokoya, Takayoshi

AU - Tsuda, S.

AU - Kiss, T.

AU - Shimojima, T.

AU - Ishizaka, K.

AU - Takeya, H.

AU - Hirata, K.

AU - Watanabe, T.

AU - Nohara, Minoru

AU - Takagi, H.

AU - Nakai, N.

AU - Machida, K.

AU - Togashi, T.

AU - Watanabe, S.

AU - Wang, X. Y.

AU - Chen, C. T.

AU - Shin, S.

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