Analysis of the local structure by single-crystal neutron scattering in La1.85Sr0.15CuO4
Physical Review B - Condensed Matter and Materials Physics Volume 63 Issue 14
Page 140510-1-140510-4
published_at 2001-03-23
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| File | |
| Title ( eng ) |
Analysis of the local structure by single-crystal neutron scattering in La1.85Sr0.15CuO4
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| Creator |
Braden Markus
Meven M.
Reichardt Winfried
Pintschovius Lothar
Fernandez-Diaz Maria Teresa
Heger Gernot
Nakamura Fumihiko
Fujita Toshizo
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| Source Title |
Physical Review B - Condensed Matter and Materials Physics
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| Volume | 63 |
| Issue | 14 |
| Start Page | 140510-1 |
| End Page | 140510-4 |
| Abstract |
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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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2001-03-23 |
| Rights |
Copyright (c) 2001 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[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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