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Suppression of ferromagnetic spin fluctuations in the filled skutterudite superconductor SrOs4As12 revealed by As-75 NMR-NQR measurements
http://hdl.handle.net/10258/00010222
http://hdl.handle.net/10258/00010222d4bf9fc2-f8d1-49be-b405-c590aae2a903
名前 / ファイル | ライセンス | アクション |
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PRB_2019_100_054516 (668.7 kB)
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Item type | 学術雑誌論文 / Journal Article.(1) | |||||||||||||||||
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公開日 | 2020-07-13 | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | en | |||||||||||||||||
タイトル | Suppression of ferromagnetic spin fluctuations in the filled skutterudite superconductor SrOs4As12 revealed by As-75 NMR-NQR measurements | |||||||||||||||||
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 | open access | |||||||||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||
著者 |
川村, 幸裕
× 川村, 幸裕× 西根, 康平× 川村, 幸裕
WEKO
5772
× 林, 純一× 関根, ちひろ
WEKO
5773
× FURUKAWA, Yu |
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室蘭工業大学研究者データベースへのリンク | ||||||||||||||||||
川村 幸裕(KAWAMURA Yukihiro) | ||||||||||||||||||
http://rdsoran.muroran-it.ac.jp/html/100000227_ja.html | ||||||||||||||||||
室蘭工業大学研究者データベースへのリンク | ||||||||||||||||||
関根 ちひろ(SEKINE Chihiro) | ||||||||||||||||||
http://rdsoran.muroran-it.ac.jp/html/100000003_ja.html | ||||||||||||||||||
抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | Motivated by the recent observation of ferromagnetic spin correlations in the filled skutterudite SrFe4As12 [Q.-P. Ding et al., Phys. Rev. B 98, 155149 (2018)], we have carried out As-75 nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements to investigate the role of magnetic fluctuations in the newly discovered isostructural superconductor SrOs4As12 with a superconducting transition temperature of T-c similar to 4.8 K. Knight shift K determined by the NQR spectrum under a small magnetic field (<= 0.5 T) is nearly independent of temperature, consistent with the temperature dependence of the magnetic susceptibility. The nuclear spin-lattice relaxation rate divided by temperature, 1/T1T, is nearly independent of temperature above similar to 50 K and increases slightly with decreasing temperature below the temperature. The temperature dependence is reasonably explained by a simple model where a flat band structure with a small ledge near the Fermi energy is assumed. By comparing the present NMR data with those in SrFe4As12, we found that the values of vertical bar K vertical bar and 1/T1T in SrOs4As12 are smaller than those in SrFe4As12, indicating no obvious ferromagnetic spin correlations in SrOs4As12. From the temperature dependence of 1/T-1 in the superconducting state, an s-wave superconductivity is realized. | |||||||||||||||||
言語 | en | |||||||||||||||||
書誌情報 |
en : PHYSICAL REVIEW B 巻 100, 号 5, 発行日 2019 |
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出版者 | ||||||||||||||||||
言語 | en | |||||||||||||||||
出版者 | AMER PHYSICAL SOC | |||||||||||||||||
出版者版へのリンク | ||||||||||||||||||
10.1103/PhysRevB.100.054516 | ||||||||||||||||||
https://doi.org/10.1103/PhysRevB.100.054516 | ||||||||||||||||||
DOI | ||||||||||||||||||
関連タイプ | isIdenticalTo | |||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||
関連識別子 | 10.1103/PhysRevB.100.054516 | |||||||||||||||||
日本十進分類法 | ||||||||||||||||||
主題Scheme | NDC | |||||||||||||||||
主題 | 549 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | PISSN | |||||||||||||||||
収録物識別子 | 2469-9950 | |||||||||||||||||
権利 | ||||||||||||||||||
言語 | en | |||||||||||||||||
権利情報 | ©2019 American Physical Society | |||||||||||||||||
著者版フラグ | ||||||||||||||||||
出版タイプ | VoR | |||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||
フォーマット | ||||||||||||||||||
内容記述タイプ | Other | |||||||||||||||||
内容記述 | application/pdf |