Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe 2(As,P) 2 with low energy photons

T. Shimojima; F. Sakaguchi; K. Ishizaka; Y. Ishida; W. Malaeb; T. Yoshida; S. Ideta; A. Fujimori; T. Kiss; M. Okawa; T. Togashi; C. T. Chen; S. Watanabe; Y. Nakashima; A. Ino; H. Anzai; M. Arita; K. Shimada; H. Namatame; M. Taniguchi; S. Kasahara; T. Terashima; T. Shibauchi; Y. Matsuda; M. Nakajima; S. Uchida; K. Kihou; C. H. Lee; A. Iyo; H. Eisaki; A. Chainani; S. Shin

doi:10.1016/j.ssc.2011.12.032

Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe ₂(As,P) ₂ with low energy photons

T. Shimojima^*, F. Sakaguchi, K. Ishizaka, Y. Ishida, W. Malaeb, T. Yoshida, S. Ideta, A. Fujimori, T. Kiss, M. Okawa, T. Togashi, C. T. Chen, S. Watanabe, Y. Nakashima, A. Ino, H. Anzai, M. Arita, K. Shimada, H. Namatame, M. TaniguchiS. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, M. Nakajima, S. Uchida, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, A. Chainani, S. Shin

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

We investigate the ^kz dispersion in the hole Fermi surfaces (FSs) and the superconducting (SC) gaps of BaFe ₂(As _0.65P _0.35) ₂ by employing bulk-sensitive angle-resolved photoemission spectroscopy (ARPES) with low energy photons. We find that this material exhibits a comparable magnitude of SC gaps for three-hole FSs at ^kz∼π. The comparable magnitude of the SC gap is observed also at ^kz∼ 0. Since each FS sheet has a distinct orbital character, these observations are an indication of the orbital-independent SC gaps in the hole FSs.

Original language	English
Pages (from-to)	695-700
Number of pages	6
Journal	Solid State Communications
Volume	152
Issue number	8
DOIs	https://doi.org/10.1016/j.ssc.2011.12.032
Publication status	Published - 2012 Apr
Externally published	Yes

Keywords

A. Iron pnictides
D. Superconductivity
E. Photoemission spectroscopy

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2011.12.032

Cite this

Shimojima, T., Sakaguchi, F., Ishizaka, K., Ishida, Y., Malaeb, W., Yoshida, T., Ideta, S., Fujimori, A., Kiss, T., Okawa, M., Togashi, T., Chen, C. T., Watanabe, S., Nakashima, Y., Ino, A., Anzai, H., Arita, M., Shimada, K., Namatame, H., ... Shin, S. (2012). Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe ₂(As,P) ₂ with low energy photons. Solid State Communications, 152(8), 695-700. https://doi.org/10.1016/j.ssc.2011.12.032

Shimojima, T, Sakaguchi, F, Ishizaka, K, Ishida, Y, Malaeb, W, Yoshida, T, Ideta, S, Fujimori, A, Kiss, T, Okawa, M, Togashi, T, Chen, CT, Watanabe, S, Nakashima, Y, Ino, A, Anzai, H, Arita, M, Shimada, K, Namatame, H, Taniguchi, M, Kasahara, S, Terashima, T, Shibauchi, T, Matsuda, Y, Nakajima, M, Uchida, S, Kihou, K, Lee, CH, Iyo, A, Eisaki, H, Chainani, A & Shin, S 2012, 'Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe ₂(As,P) ₂ with low energy photons', Solid State Communications, vol. 152, no. 8, pp. 695-700. https://doi.org/10.1016/j.ssc.2011.12.032

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title = "Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe 2(As,P) 2 with low energy photons",

abstract = "We investigate the kz dispersion in the hole Fermi surfaces (FSs) and the superconducting (SC) gaps of BaFe 2(As 0.65P 0.35) 2 by employing bulk-sensitive angle-resolved photoemission spectroscopy (ARPES) with low energy photons. We find that this material exhibits a comparable magnitude of SC gaps for three-hole FSs at kz∼π. The comparable magnitude of the SC gap is observed also at kz∼ 0. Since each FS sheet has a distinct orbital character, these observations are an indication of the orbital-independent SC gaps in the hole FSs.",

keywords = "A. Iron pnictides, D. Superconductivity, E. Photoemission spectroscopy",

author = "T. Shimojima and F. Sakaguchi and K. Ishizaka and Y. Ishida and W. Malaeb and T. Yoshida and S. Ideta and A. Fujimori and T. Kiss and M. Okawa and T. Togashi and Chen, {C. T.} and S. Watanabe and Y. Nakashima and A. Ino and H. Anzai and M. Arita and K. Shimada and H. Namatame and M. Taniguchi and S. Kasahara and T. Terashima and T. Shibauchi and Y. Matsuda and M. Nakajima and S. Uchida and K. Kihou and Lee, {C. H.} and A. Iyo and H. Eisaki and A. Chainani and S. Shin",

note = "Funding Information: We thank K. Ohgushi, R. Arita, H. Kontani, S. Onari, M. Ogata and Y. Yanase for valuable discussions. We acknowledge K. Kuroki, H. Usui, Y. Suzuki and A. Carrington for valuable discussions and first-principles band calculations. Part of this work was performed at the Hiroshima Synchrotron Radiation Center, Hiroshima University, Japan (Proposal No. 10-B-24, 10-B-27). Support for this work was provided by a Grant-in-Aid for Young Scientist B (22740221) to T.Y. This research is supported by the Japan Society for the Promotion of Science (JSPS) through its FIRST Program.",

year = "2012",

month = apr,

doi = "10.1016/j.ssc.2011.12.032",

language = "English",

volume = "152",

pages = "695--700",

journal = "Solid State Communications",

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TY - JOUR

T1 - Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe 2(As,P) 2 with low energy photons

AU - Shimojima, T.

AU - Sakaguchi, F.

AU - Ishizaka, K.

AU - Ishida, Y.

AU - Malaeb, W.

AU - Yoshida, T.

AU - Ideta, S.

AU - Fujimori, A.

AU - Kiss, T.

AU - Okawa, M.

AU - Togashi, T.

AU - Chen, C. T.

AU - Watanabe, S.

AU - Nakashima, Y.

AU - Ino, A.

AU - Anzai, H.

AU - Arita, M.

AU - Shimada, K.

AU - Namatame, H.

AU - Taniguchi, M.

AU - Kasahara, S.

AU - Terashima, T.

AU - Shibauchi, T.

AU - Matsuda, Y.

AU - Nakajima, M.

AU - Uchida, S.

AU - Kihou, K.

AU - Lee, C. H.

AU - Iyo, A.

AU - Eisaki, H.

AU - Chainani, A.

AU - Shin, S.

N1 - Funding Information: We thank K. Ohgushi, R. Arita, H. Kontani, S. Onari, M. Ogata and Y. Yanase for valuable discussions. We acknowledge K. Kuroki, H. Usui, Y. Suzuki and A. Carrington for valuable discussions and first-principles band calculations. Part of this work was performed at the Hiroshima Synchrotron Radiation Center, Hiroshima University, Japan (Proposal No. 10-B-24, 10-B-27). Support for this work was provided by a Grant-in-Aid for Young Scientist B (22740221) to T.Y. This research is supported by the Japan Society for the Promotion of Science (JSPS) through its FIRST Program.

PY - 2012/4

Y1 - 2012/4

N2 - We investigate the kz dispersion in the hole Fermi surfaces (FSs) and the superconducting (SC) gaps of BaFe 2(As 0.65P 0.35) 2 by employing bulk-sensitive angle-resolved photoemission spectroscopy (ARPES) with low energy photons. We find that this material exhibits a comparable magnitude of SC gaps for three-hole FSs at kz∼π. The comparable magnitude of the SC gap is observed also at kz∼ 0. Since each FS sheet has a distinct orbital character, these observations are an indication of the orbital-independent SC gaps in the hole FSs.

AB - We investigate the kz dispersion in the hole Fermi surfaces (FSs) and the superconducting (SC) gaps of BaFe 2(As 0.65P 0.35) 2 by employing bulk-sensitive angle-resolved photoemission spectroscopy (ARPES) with low energy photons. We find that this material exhibits a comparable magnitude of SC gaps for three-hole FSs at kz∼π. The comparable magnitude of the SC gap is observed also at kz∼ 0. Since each FS sheet has a distinct orbital character, these observations are an indication of the orbital-independent SC gaps in the hole FSs.

KW - A. Iron pnictides

KW - D. Superconductivity

KW - E. Photoemission spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=84862809183&partnerID=8YFLogxK

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U2 - 10.1016/j.ssc.2011.12.032

DO - 10.1016/j.ssc.2011.12.032

M3 - Article

AN - SCOPUS:84862809183

SN - 0038-1098

VL - 152

SP - 695

EP - 700

JO - Solid State Communications

JF - Solid State Communications

IS - 8

ER -