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Fluctuating magnetism of Co- and Cu-doped NaFeAs
https://repo.qst.go.jp/records/82346
https://repo.qst.go.jp/records/82346f8b904e3-307b-4e27-b58e-1446422781d4
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-18 | |||||
タイトル | ||||||
タイトル | Fluctuating magnetism of Co- and Cu-doped NaFeAs | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Pelliciari, Jonathan
× Pelliciari, Jonathan× Ishii, Kenji× Xing, Lingyi× Wang, Xiancheng× Jin, Changqing× Kenji, Ishii |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We report an x-ray emission spectroscopy study of the local fluctuating magnetic moment (mu_bare) in NaFe1-????xCoxAs and NaFe1????-xCuxAs. In NaFeAs, the reduced height of the As ions induces a local magnetic moment higher than BaFe2As2 despite lower T_N and ordered magnetic moment. As NaFeAs is doped with Co, mu_bare is slightly reduced, whereas Cu doping leaves it unaffected, indicating a different doping mechanism: based on electron counting for Co, whereas impurity scattering dominates in the case of Cu. Finally, we observe an increase in mu_bare with temperature in all samples as observed in electron- and hole-doped BaFe2As2. Since both Co and Cu doping display superconductivity, our findings demonstrate that the formation of Cooper pairs is not connected with the complete loss of fluctuating paramagnetic moments. | |||||
書誌情報 |
Applied Physics Letters 巻 118, 号 11, p. 112604-1-112604-6, 発行日 2021-03 |
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出版者 | ||||||
出版者 | AIP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0003-6951 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1063/5.0047264 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://aip.scitation.org/doi/10.1063/5.0047264 |