Microscopic evidence of direct coupling between magnetic and superconducting order parameters in BaFe 2(As 1-xP x) 2

Tetsuya Iye, Yusuke Nakai, Shunsaku Kitagawa, Kenji Ishida, Shigeru Kasahara, Takasada Shibauchi, Yuji Matsuda, Takahito Terashima

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The coexistence of magnetism and superconductivity in the isovalent-P-substituted BaFe 2(As 1-xP x) 2 has been investigated microscopically by 31P-NMR measurements. We found that superconducting (SC) transition occurs in a magnetic region with static ordered moments and that the moments are reduced below the SC transition temperature T c in the samples near the phase boundary of magnetism and superconductivity. Our results indicate that magnetism and superconductivity coexist spatially but compete with each other on the same Fermi surfaces. The coexistence state is qualitatively different from that observed in other unconventional superconductors and gives a strict constraint on the theoretical model for superconductivity in BaFe 2(As 1-xP x) 2.

Original languageEnglish
Article number033701
JournalJournal of the Physical Society of Japan
Volume81
Issue number3
DOIs
Publication statusPublished - Mar 2012
Externally publishedYes

Fingerprint

superconductivity
moments
Fermi surfaces
transition temperature
nuclear magnetic resonance

Keywords

  • Coexistence between magnetism and superconductivity
  • Iron-pnictide superconductors
  • NMR

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Microscopic evidence of direct coupling between magnetic and superconducting order parameters in BaFe 2(As 1-xP x) 2 . / Iye, Tetsuya; Nakai, Yusuke; Kitagawa, Shunsaku; Ishida, Kenji; Kasahara, Shigeru; Shibauchi, Takasada; Matsuda, Yuji; Terashima, Takahito.

In: Journal of the Physical Society of Japan, Vol. 81, No. 3, 033701, 03.2012.

Research output: Contribution to journalArticle

Iye, T, Nakai, Y, Kitagawa, S, Ishida, K, Kasahara, S, Shibauchi, T, Matsuda, Y & Terashima, T 2012, 'Microscopic evidence of direct coupling between magnetic and superconducting order parameters in BaFe 2(As 1-xP x) 2 ', Journal of the Physical Society of Japan, vol. 81, no. 3, 033701. https://doi.org/10.1143/JPSJ.81.033701
Iye, Tetsuya ; Nakai, Yusuke ; Kitagawa, Shunsaku ; Ishida, Kenji ; Kasahara, Shigeru ; Shibauchi, Takasada ; Matsuda, Yuji ; Terashima, Takahito. / Microscopic evidence of direct coupling between magnetic and superconducting order parameters in BaFe 2(As 1-xP x) 2 . In: Journal of the Physical Society of Japan. 2012 ; Vol. 81, No. 3.
@article{df1efa83c0634f65b4123e9f186f7755,
title = "Microscopic evidence of direct coupling between magnetic and superconducting order parameters in BaFe 2(As 1-xP x) 2",
abstract = "The coexistence of magnetism and superconductivity in the isovalent-P-substituted BaFe 2(As 1-xP x) 2 has been investigated microscopically by 31P-NMR measurements. We found that superconducting (SC) transition occurs in a magnetic region with static ordered moments and that the moments are reduced below the SC transition temperature T c in the samples near the phase boundary of magnetism and superconductivity. Our results indicate that magnetism and superconductivity coexist spatially but compete with each other on the same Fermi surfaces. The coexistence state is qualitatively different from that observed in other unconventional superconductors and gives a strict constraint on the theoretical model for superconductivity in BaFe 2(As 1-xP x) 2.",
keywords = "Coexistence between magnetism and superconductivity, Iron-pnictide superconductors, NMR",
author = "Tetsuya Iye and Yusuke Nakai and Shunsaku Kitagawa and Kenji Ishida and Shigeru Kasahara and Takasada Shibauchi and Yuji Matsuda and Takahito Terashima",
year = "2012",
month = "3",
doi = "10.1143/JPSJ.81.033701",
language = "English",
volume = "81",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "3",

}

TY - JOUR

T1 - Microscopic evidence of direct coupling between magnetic and superconducting order parameters in BaFe 2(As 1-xP x) 2

AU - Iye, Tetsuya

AU - Nakai, Yusuke

AU - Kitagawa, Shunsaku

AU - Ishida, Kenji

AU - Kasahara, Shigeru

AU - Shibauchi, Takasada

AU - Matsuda, Yuji

AU - Terashima, Takahito

PY - 2012/3

Y1 - 2012/3

N2 - The coexistence of magnetism and superconductivity in the isovalent-P-substituted BaFe 2(As 1-xP x) 2 has been investigated microscopically by 31P-NMR measurements. We found that superconducting (SC) transition occurs in a magnetic region with static ordered moments and that the moments are reduced below the SC transition temperature T c in the samples near the phase boundary of magnetism and superconductivity. Our results indicate that magnetism and superconductivity coexist spatially but compete with each other on the same Fermi surfaces. The coexistence state is qualitatively different from that observed in other unconventional superconductors and gives a strict constraint on the theoretical model for superconductivity in BaFe 2(As 1-xP x) 2.

AB - The coexistence of magnetism and superconductivity in the isovalent-P-substituted BaFe 2(As 1-xP x) 2 has been investigated microscopically by 31P-NMR measurements. We found that superconducting (SC) transition occurs in a magnetic region with static ordered moments and that the moments are reduced below the SC transition temperature T c in the samples near the phase boundary of magnetism and superconductivity. Our results indicate that magnetism and superconductivity coexist spatially but compete with each other on the same Fermi surfaces. The coexistence state is qualitatively different from that observed in other unconventional superconductors and gives a strict constraint on the theoretical model for superconductivity in BaFe 2(As 1-xP x) 2.

KW - Coexistence between magnetism and superconductivity

KW - Iron-pnictide superconductors

KW - NMR

UR - http://www.scopus.com/inward/record.url?scp=84858039700&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858039700&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.81.033701

DO - 10.1143/JPSJ.81.033701

M3 - Article

AN - SCOPUS:84858039700

VL - 81

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 3

M1 - 033701

ER -