Direct evidence for charge stripes in a layered cobalt oxide
Recent experiments indicate that static stripe-like charge order is generic to the hole-doped copper oxide superconductors and competes with superconductivity. Here we show that a similar type of charge order is present in La<sub>5/3</sub>Sr<sub>1/3</sub>CoO4, an insulating a...
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| Fformat: | Journal article |
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Nature Publishing Group
2016
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| _version_ | 1826292467525222400 |
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| author | Babkevich, P Freeman, P Enderle, M Prabhakaran, D Boothroyd, A |
| author_facet | Babkevich, P Freeman, P Enderle, M Prabhakaran, D Boothroyd, A |
| author_sort | Babkevich, P |
| collection | OXFORD |
| description | Recent experiments indicate that static stripe-like charge order is generic to the hole-doped copper oxide superconductors and competes with superconductivity. Here we show that a similar type of charge order is present in La<sub>5/3</sub>Sr<sub>1/3</sub>CoO4, an insulating analogue of the copper oxide superconductors containing cobalt in place of copper. The stripe phase we have detected is accompanied by short-range, quasi-one-dimensional, antiferromagnetic order, and provides a natural explanation for the distinctive hourglass shape of the magnetic spectrum previously observed in neutron scattering measurements of La<sub>2−x</sub>SrxCoO<sub>4</sub> and many hole-doped copper oxide superconductors. The results establish a solid empirical basis for theories of the hourglass spectrum built on short-range, quasi-static, stripe correlations. |
| first_indexed | 2024-03-07T03:15:09Z |
| format | Journal article |
| id | oxford-uuid:b58a8e64-f5b5-4673-81ef-9683658ca5a1 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:15:09Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | oxford-uuid:b58a8e64-f5b5-4673-81ef-9683658ca5a12022-03-27T04:34:09ZDirect evidence for charge stripes in a layered cobalt oxideJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b58a8e64-f5b5-4673-81ef-9683658ca5a1Symplectic Elements at OxfordNature Publishing Group2016Babkevich, PFreeman, PEnderle, MPrabhakaran, DBoothroyd, ARecent experiments indicate that static stripe-like charge order is generic to the hole-doped copper oxide superconductors and competes with superconductivity. Here we show that a similar type of charge order is present in La<sub>5/3</sub>Sr<sub>1/3</sub>CoO4, an insulating analogue of the copper oxide superconductors containing cobalt in place of copper. The stripe phase we have detected is accompanied by short-range, quasi-one-dimensional, antiferromagnetic order, and provides a natural explanation for the distinctive hourglass shape of the magnetic spectrum previously observed in neutron scattering measurements of La<sub>2−x</sub>SrxCoO<sub>4</sub> and many hole-doped copper oxide superconductors. The results establish a solid empirical basis for theories of the hourglass spectrum built on short-range, quasi-static, stripe correlations. |
| spellingShingle | Babkevich, P Freeman, P Enderle, M Prabhakaran, D Boothroyd, A Direct evidence for charge stripes in a layered cobalt oxide |
| title | Direct evidence for charge stripes in a layered cobalt oxide |
| title_full | Direct evidence for charge stripes in a layered cobalt oxide |
| title_fullStr | Direct evidence for charge stripes in a layered cobalt oxide |
| title_full_unstemmed | Direct evidence for charge stripes in a layered cobalt oxide |
| title_short | Direct evidence for charge stripes in a layered cobalt oxide |
| title_sort | direct evidence for charge stripes in a layered cobalt oxide |
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