Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25
We present high resolution X-ray measurements characterising the charge stripe order state in the La2-xSrxNiO4 system with x = 0.20, 0.225 and 0.25. We find that in the x = 0.20, 0.225 and 0.25 systems the charge stripe order exists in a charge stripe glass characterised by weak, poorly correlated i...
| Những tác giả chính: | , , , , , , |
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| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
2005
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| _version_ | 1826263991991664640 |
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| author | Spencer, P Ghazi, M Wilkins, S Hatton, P Brown, S Prabhakaran, D Boothroyd, A |
| author_facet | Spencer, P Ghazi, M Wilkins, S Hatton, P Brown, S Prabhakaran, D Boothroyd, A |
| author_sort | Spencer, P |
| collection | OXFORD |
| description | We present high resolution X-ray measurements characterising the charge stripe order state in the La2-xSrxNiO4 system with x = 0.20, 0.225 and 0.25. We find that in the x = 0.20, 0.225 and 0.25 systems the charge stripe order exists in a charge stripe glass characterised by weak, poorly correlated incommensurate charge stripes in contrast to the strong well correlated charge stripes in the commensurate x = 1/3 system. No stabilisation of the charge order was observed at the next possible commensurate value of ε= 0.25. A comparison with high energy X-ray measurements suggested that the charge order may exist in a charge stripe glass in the bulk in the doping region x = 0.20 - 0.33. Finally at low temperature there was an initial increase in the intensity and correlation not observed with neutron measurements and it appears to be an effect that X-rays are sensitive to but neutrons are not. © EDP Sciences, Società Italiana di Fisica/Springer-Verlag 2005. |
| first_indexed | 2024-03-06T20:00:41Z |
| format | Journal article |
| id | oxford-uuid:273094b8-51bc-45e9-96e4-eae0c0589da0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:00:41Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:273094b8-51bc-45e9-96e4-eae0c0589da02022-03-26T12:05:28ZCharge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:273094b8-51bc-45e9-96e4-eae0c0589da0EnglishSymplectic Elements at Oxford2005Spencer, PGhazi, MWilkins, SHatton, PBrown, SPrabhakaran, DBoothroyd, AWe present high resolution X-ray measurements characterising the charge stripe order state in the La2-xSrxNiO4 system with x = 0.20, 0.225 and 0.25. We find that in the x = 0.20, 0.225 and 0.25 systems the charge stripe order exists in a charge stripe glass characterised by weak, poorly correlated incommensurate charge stripes in contrast to the strong well correlated charge stripes in the commensurate x = 1/3 system. No stabilisation of the charge order was observed at the next possible commensurate value of ε= 0.25. A comparison with high energy X-ray measurements suggested that the charge order may exist in a charge stripe glass in the bulk in the doping region x = 0.20 - 0.33. Finally at low temperature there was an initial increase in the intensity and correlation not observed with neutron measurements and it appears to be an effect that X-rays are sensitive to but neutrons are not. © EDP Sciences, Società Italiana di Fisica/Springer-Verlag 2005. |
| spellingShingle | Spencer, P Ghazi, M Wilkins, S Hatton, P Brown, S Prabhakaran, D Boothroyd, A Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25 |
| title | Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25 |
| title_full | Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25 |
| title_fullStr | Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25 |
| title_full_unstemmed | Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25 |
| title_short | Charge stripe glasses in La2-xSrxNiO4 for 0.20 < x < 0.25 |
| title_sort | charge stripe glasses in la2 xsrxnio4 for 0 20 lt x lt 0 25 |
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