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Evidence of Two Dimensionality in Quasi-One-Dimensional Cobalt Oxides
http://hdl.handle.net/2237/8880
http://hdl.handle.net/2237/88801ea54e3b-5188-4424-911a-b491a515e6d9
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-10-24 | |||||
タイトル | ||||||
タイトル | Evidence of Two Dimensionality in Quasi-One-Dimensional Cobalt Oxides | |||||
言語 | en | |||||
著者 |
Sugiyama, J.
× Sugiyama, J.× Nozaki, H.× Ikedo, Y.× Mukai, K.× Andreica, D.× Amato, A.× Brewer, J. H.× Ansaldo, E. J.× Morris, G. D.× Takami, T.× Ikuta, H. |
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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 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Copyright: American Physical Society, All rights reserved. | |||||
抄録 | ||||||
内容記述 | The quasi-one-dimensional (Q1D) cobalt oxides A_{n+2}Co_{n+1}O{3n+3} (A = Ca, Sr, and Ba, n = 1-∞) were investigated by muon-spin spectroscopy under applied pressures of up to 1.1 GPa. The relationship between the onset Néel temperature T^on _N and the interchain distance (d_ic), which increases monotonically with n, is well fitted by the formula T_N/T_N,0 =(1-d_ic/d_ic,0)^β ; here T^on _N ~ 100 K for Ca3Co2O6 (n = 1) and ~15 K for BaCoO3 (n=∞) at ambient P. The T^on _N - d_ic curve also predicts a large P dependence of T_N for the compounds with n ≧ 5, i.e., in the vicinity of d_ic,0, while the n = 1–4 compounds show only a very small effect. Indeed, our high-pressure μ+SR results show that T_N of BaCoO3 is enhanced by P with a slope of 2.2 K/GPa, whereas no detectable changes by P for both Ca3Co2O6 and Sr4Co3O9 (n =2). This clearly confirms the role of the 2D-antiferromagnetic interaction on T^on _N in the Q1D cobalt oxides. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevLett.96.197206 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0031-9007 | |||||
書誌情報 |
en : PHYSICAL REVIEW LETTERS 巻 96, 号 19, p. 197206-197206, 発行日 2006-05-19 |
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application/pdf | ||||||
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値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/8880 | |||||
識別子タイプ | HDL |