Superconducting Gap and Valence Band of Mg<SUB>10</SUB>Ir<SUB>19</SUB>B<SUB>16</SUB> Studied by Laser and Synchrotron Photoemission Spectroscopy
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- Yoshida Rikiya
- The Graduate School of Natural Science and Technology, Okayama University
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- Okazaki Hiroyuki
- The Graduate School of Natural Science and Technology, Okayama University
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- Iwai Keisuke
- The Graduate School of Natural Science and Technology, Okayama University
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- Noami Kengo
- The Graduate School of Natural Science and Technology, Okayama University
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- Muro Takayuki
- Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8
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- Okawa Mario
- Institute for Solid State Physics, The University of Tokyo
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- Ishizaka Kyoko
- Institute for Solid State Physics, The University of Tokyo
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- Shin Shik
- Institute for Solid State Physics, The University of Tokyo The Institute of Physical and Chemical Research (RIKEN)
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- Li Zheng
- Institute of Physics, Chinese Academy of Sciences
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- Luo Jianlin
- Institute of Physics, Chinese Academy of Sciences
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- Zheng Guo-qing
- The Graduate School of Natural Science and Technology, Okayama University
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- Oguchi Tamio
- Department of Quantum Matter, Graduate School of Advanced Sciences of Matter (ADSM), Hiroshima University
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- Hirai Masaaki
- The Graduate School of Natural Science and Technology, Okayama University Research Laboratory for Surface Science (RLSS), Okayama University
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- Muraoka Yuji
- The Graduate School of Natural Science and Technology, Okayama University Research Laboratory for Surface Science (RLSS), Okayama University JST, CREST
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- Yokoya Takayoshi
- The Graduate School of Natural Science and Technology, Okayama University Research Laboratory for Surface Science (RLSS), Okayama University JST, CREST
Bibliographic Information
- Other Title
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- Superconducting gap and valence band of Mg10Ir19B16 studied by laser and synchrotron photoemission spectroscopy
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Abstract
We report the results of first photoemission spectroscopy on a newly discovered noncentrosymmetric superconductor Mg10Ir19B16. We measured the valence band structure of Mg10Ir19B16 using soft X-ray photoemission technique and found that the first principal calculation explains our observation well. In the bulk-sensitive laser-excited photoemission study, we observed that the intensity at the Fermi level decreases as we lower the sample temperature, indicative of the opening of superconducting energy gap. Using Dynes’ function, we performed fitting analysis on the spectra of superconducting state.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 78 (3), 034705-034705, 2009
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679173200128
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- NII Article ID
- 130005437309
- 110007138872
- 210000107714
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- NII Book ID
- AA00704814
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 10183144
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed