Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy

K. Sawada; D. Ootsuki; K. Kudo; D. Mitsuoka; M. Nohara; T. Noda; K. Horiba; M. Kobayashi; K. Ono; H. Kumigashira; N. L. Saini; T. Mizokawa

doi:10.1103/PhysRevB.89.220508

Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy

K. Sawada, D. Ootsuki, K. Kudo, D. Mitsuoka, M. Nohara, T. Noda, K. Horiba, M. Kobayashi, K. Ono, H. Kumigashira, N. L. Saini, T. Mizokawa

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

5 Citations (Scopus)

Abstract

Angle-resolved photoemission spectroscopy of Ca10(Ir4As8)(Fe2-xIrxAs2)5 shows that the Fe 3d electrons in the FeAs layer form the holelike Fermi pocket at the zone center and the electronlike Fermi pockets at the zone corners as commonly seen in various Fe-based superconductors. The FeAs layer is heavily electron doped and has relatively good two dimensionality. On the other hand, the Ir 5d electrons are metallic and glassy probably due to atomic disorder related to the Ir 5d orbital instability. Ca10(Ir4As8)(Fe2-xIrxAs2)5 exhibits a unique electronic state where the Bloch electrons in the FeAs layer coexist with the glassy electrons in the Ir4As8 layer.

Original language	English
Article number	220508
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.89.220508
Publication status	Published - Jun 25 2014

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Sawada, K., Ootsuki, D., Kudo, K., Mitsuoka, D., Nohara, M., Noda, T., Horiba, K., Kobayashi, M., Ono, K., Kumigashira, H., Saini, N. L., & Mizokawa, T. (2014). Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy. Physical Review B - Condensed Matter and Materials Physics, 89(22), Article 220508. https://doi.org/10.1103/PhysRevB.89.220508

Sawada, K, Ootsuki, D, Kudo, K, Mitsuoka, D, Nohara, M, Noda, T, Horiba, K, Kobayashi, M, Ono, K, Kumigashira, H, Saini, NL & Mizokawa, T 2014, 'Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy', Physical Review B - Condensed Matter and Materials Physics, vol. 89, no. 22, 220508. https://doi.org/10.1103/PhysRevB.89.220508

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title = "Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy",

abstract = "Angle-resolved photoemission spectroscopy of Ca10(Ir4As8)(Fe2-xIrxAs2)5 shows that the Fe 3d electrons in the FeAs layer form the holelike Fermi pocket at the zone center and the electronlike Fermi pockets at the zone corners as commonly seen in various Fe-based superconductors. The FeAs layer is heavily electron doped and has relatively good two dimensionality. On the other hand, the Ir 5d electrons are metallic and glassy probably due to atomic disorder related to the Ir 5d orbital instability. Ca10(Ir4As8)(Fe2-xIrxAs2)5 exhibits a unique electronic state where the Bloch electrons in the FeAs layer coexist with the glassy electrons in the Ir4As8 layer.",

author = "K. Sawada and D. Ootsuki and K. Kudo and D. Mitsuoka and M. Nohara and T. Noda and K. Horiba and M. Kobayashi and K. Ono and H. Kumigashira and Saini, {N. L.} and T. Mizokawa",

year = "2014",

month = jun,

day = "25",

doi = "10.1103/PhysRevB.89.220508",

language = "English",

volume = "89",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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T1 - Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy

AU - Sawada, K.

AU - Ootsuki, D.

AU - Kudo, K.

AU - Mitsuoka, D.

AU - Nohara, M.

AU - Noda, T.

AU - Horiba, K.

AU - Kobayashi, M.

AU - Ono, K.

AU - Kumigashira, H.

AU - Saini, N. L.

AU - Mizokawa, T.

PY - 2014/6/25

Y1 - 2014/6/25

N2 - Angle-resolved photoemission spectroscopy of Ca10(Ir4As8)(Fe2-xIrxAs2)5 shows that the Fe 3d electrons in the FeAs layer form the holelike Fermi pocket at the zone center and the electronlike Fermi pockets at the zone corners as commonly seen in various Fe-based superconductors. The FeAs layer is heavily electron doped and has relatively good two dimensionality. On the other hand, the Ir 5d electrons are metallic and glassy probably due to atomic disorder related to the Ir 5d orbital instability. Ca10(Ir4As8)(Fe2-xIrxAs2)5 exhibits a unique electronic state where the Bloch electrons in the FeAs layer coexist with the glassy electrons in the Ir4As8 layer.

AB - Angle-resolved photoemission spectroscopy of Ca10(Ir4As8)(Fe2-xIrxAs2)5 shows that the Fe 3d electrons in the FeAs layer form the holelike Fermi pocket at the zone center and the electronlike Fermi pockets at the zone corners as commonly seen in various Fe-based superconductors. The FeAs layer is heavily electron doped and has relatively good two dimensionality. On the other hand, the Ir 5d electrons are metallic and glassy probably due to atomic disorder related to the Ir 5d orbital instability. Ca10(Ir4As8)(Fe2-xIrxAs2)5 exhibits a unique electronic state where the Bloch electrons in the FeAs layer coexist with the glassy electrons in the Ir4As8 layer.

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Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2- xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy

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