Comparative ARPES study on iron-platinum-arsenide superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 (x = 0.25 and 0.42)

Masanori Sunagawa, Rikiya Yoshida, Toshihiko Ishiga, Koji Tsubota, Taihei Jabuchi, Junki Sonoyama, Satomi Kakiya, Daisuke Mitsuoka, Kazutaka Kudo, Minoru Nohara, Kanta Ono, Hiroshi Kumigashira, Tamio Oguchi, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We studied the electronic structure of Ca10(Pt4As8)(Fe2-xPtxAs2)5 for two platinum concentrations with different Tc using ARPES. From the carrier number estimated from the areas of FS sheets, we found that the Pt substitution induces electron doping into the Fe2As2 layers (effectively two electrons per Pt atom). In addition, we found that the FS nesting condition in x = 0.25 is stronger than that in x = 0.42, indicating close correlation between the FS nesting and Tc.

Original languageEnglish
Article number055001
JournalJournal of the Physical Society of Japan
Volume84
Issue number5
DOIs
Publication statusPublished - May 15 2015

Fingerprint

platinum
iron
electrons
substitutes
electronic structure
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Comparative ARPES study on iron-platinum-arsenide superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 (x = 0.25 and 0.42). / Sunagawa, Masanori; Yoshida, Rikiya; Ishiga, Toshihiko; Tsubota, Koji; Jabuchi, Taihei; Sonoyama, Junki; Kakiya, Satomi; Mitsuoka, Daisuke; Kudo, Kazutaka; Nohara, Minoru; Ono, Kanta; Kumigashira, Hiroshi; Oguchi, Tamio; Wakita, Takanori; Muraoka, Yuji; Yokoya, Takayoshi.

In: Journal of the Physical Society of Japan, Vol. 84, No. 5, 055001, 15.05.2015.

Research output: Contribution to journalArticle

Sunagawa, M, Yoshida, R, Ishiga, T, Tsubota, K, Jabuchi, T, Sonoyama, J, Kakiya, S, Mitsuoka, D, Kudo, K, Nohara, M, Ono, K, Kumigashira, H, Oguchi, T, Wakita, T, Muraoka, Y & Yokoya, T 2015, 'Comparative ARPES study on iron-platinum-arsenide superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 (x = 0.25 and 0.42)', Journal of the Physical Society of Japan, vol. 84, no. 5, 055001. https://doi.org/10.7566/JPSJ.84.055001
Sunagawa, Masanori ; Yoshida, Rikiya ; Ishiga, Toshihiko ; Tsubota, Koji ; Jabuchi, Taihei ; Sonoyama, Junki ; Kakiya, Satomi ; Mitsuoka, Daisuke ; Kudo, Kazutaka ; Nohara, Minoru ; Ono, Kanta ; Kumigashira, Hiroshi ; Oguchi, Tamio ; Wakita, Takanori ; Muraoka, Yuji ; Yokoya, Takayoshi. / Comparative ARPES study on iron-platinum-arsenide superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 (x = 0.25 and 0.42). In: Journal of the Physical Society of Japan. 2015 ; Vol. 84, No. 5.
@article{158b64f84125479d9242f5790fe226db,
title = "Comparative ARPES study on iron-platinum-arsenide superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 (x = 0.25 and 0.42)",
abstract = "We studied the electronic structure of Ca10(Pt4As8)(Fe2-xPtxAs2)5 for two platinum concentrations with different Tc using ARPES. From the carrier number estimated from the areas of FS sheets, we found that the Pt substitution induces electron doping into the Fe2As2 layers (effectively two electrons per Pt atom). In addition, we found that the FS nesting condition in x = 0.25 is stronger than that in x = 0.42, indicating close correlation between the FS nesting and Tc.",
author = "Masanori Sunagawa and Rikiya Yoshida and Toshihiko Ishiga and Koji Tsubota and Taihei Jabuchi and Junki Sonoyama and Satomi Kakiya and Daisuke Mitsuoka and Kazutaka Kudo and Minoru Nohara and Kanta Ono and Hiroshi Kumigashira and Tamio Oguchi and Takanori Wakita and Yuji Muraoka and Takayoshi Yokoya",
year = "2015",
month = "5",
day = "15",
doi = "10.7566/JPSJ.84.055001",
language = "English",
volume = "84",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "5",

}

TY - JOUR

T1 - Comparative ARPES study on iron-platinum-arsenide superconductor Ca10(Pt4As8)(Fe2-xPtxAs2)5 (x = 0.25 and 0.42)

AU - Sunagawa, Masanori

AU - Yoshida, Rikiya

AU - Ishiga, Toshihiko

AU - Tsubota, Koji

AU - Jabuchi, Taihei

AU - Sonoyama, Junki

AU - Kakiya, Satomi

AU - Mitsuoka, Daisuke

AU - Kudo, Kazutaka

AU - Nohara, Minoru

AU - Ono, Kanta

AU - Kumigashira, Hiroshi

AU - Oguchi, Tamio

AU - Wakita, Takanori

AU - Muraoka, Yuji

AU - Yokoya, Takayoshi

PY - 2015/5/15

Y1 - 2015/5/15

N2 - We studied the electronic structure of Ca10(Pt4As8)(Fe2-xPtxAs2)5 for two platinum concentrations with different Tc using ARPES. From the carrier number estimated from the areas of FS sheets, we found that the Pt substitution induces electron doping into the Fe2As2 layers (effectively two electrons per Pt atom). In addition, we found that the FS nesting condition in x = 0.25 is stronger than that in x = 0.42, indicating close correlation between the FS nesting and Tc.

AB - We studied the electronic structure of Ca10(Pt4As8)(Fe2-xPtxAs2)5 for two platinum concentrations with different Tc using ARPES. From the carrier number estimated from the areas of FS sheets, we found that the Pt substitution induces electron doping into the Fe2As2 layers (effectively two electrons per Pt atom). In addition, we found that the FS nesting condition in x = 0.25 is stronger than that in x = 0.42, indicating close correlation between the FS nesting and Tc.

UR - http://www.scopus.com/inward/record.url?scp=84928723809&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84928723809&partnerID=8YFLogxK

U2 - 10.7566/JPSJ.84.055001

DO - 10.7566/JPSJ.84.055001

M3 - Article

AN - SCOPUS:84928723809

VL - 84

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 5

M1 - 055001

ER -