Homogeneous coexistence and phase segregation in 1111 iron-based pnictides studied via NMR

Naoki Fujiwara, Yoichi Kamihara, Satoru Matsuishi, Hideo Hosono

研究成果: Article査読

抄録

We performed 75As and 51Co nuclear magnetic resonance (NMR) measurements on LaFeAsO1-xFx (La1111), a prototype of iron-based superconductors, and on Ca(Fe1-xCox)AsF (Ca1111), which has a small overlap between the antiferromagnetic (AF) and superconducting (SC) domes in the electronic phase diagram. We found in the Ca1111 series that AF and SC states coexist homogeneously in the overlapped region, while in the La1111 series, we found that paramagnetic (PM) and SC domains coexist around the AF-SC phase boundary. The coexistence of these domains indicates that the AF and SC domes segregate from each other in the electronic phase diagram.

本文言語English
ページ(範囲)2004-2006
ページ数3
ジャーナルJournal of the Korean Physical Society
62
12
DOI
出版ステータスPublished - 2013 7 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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