Analysis of the local structure by single-crystal neutron scattering in La1.85Sr0.15CuO4
Physical Review B - Condensed Matter and Materials Physics 63 巻 14 号
140510-1-140510-4 頁
2001-03-23 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Analysis of the local structure by single-crystal neutron scattering in La1.85Sr0.15CuO4
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| 作成者 |
Braden Markus
Meven M.
Reichardt Winfried
Pintschovius Lothar
Fernandez-Diaz Maria Teresa
Heger Gernot
Nakamura Fumihiko
Fujita Toshizo
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| 収録物名 |
Physical Review B - Condensed Matter and Materials Physics
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| 巻 | 63 |
| 号 | 14 |
| 開始ページ | 140510-1 |
| 終了ページ | 140510-4 |
| 抄録 |
We have determined the anisotropic Debye-Waller parameters of La1.85Sr0.15CuO4 with high precision using neutron diffraction on single crystals. The mean-square displacements are explained well by the contribution due to phonons and disorder induced by the mixing of La and Sr ions; the latter was simulated by relaxing the structure locally. Our analysis puts rather low upper boundaries on the amplitude of possible hidden local structural distortions; in particular, there is no evidence for in-plane charge inhomogeneities related to stripe correlations. Further, we conclude that the tilt transition in La1.85Sr0.15CuO4 is essentially displacive and continuous in nature.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2001-03-23 |
| 権利情報 |
Copyright (c) 2001 American Physical Society.
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.63.140510
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.54.10061
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