Spin fluctuations in LiFeAs observed by neutron scattering
We report neutron inelastic scattering measurements on the stoichiometric iron-based superconductor LiFeAs. We find evidence for (i) magnetic scattering consistent with strong antiferromagnetic fluctuations, and (ii) an increase in intensity in the superconducting state at low energies, similar to t...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
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2011
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| _version_ | 1826274995257475072 |
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| author | Taylor, A Pitcher, M Ewings, R Perring, T Clarke, S Boothroyd, A |
| author_facet | Taylor, A Pitcher, M Ewings, R Perring, T Clarke, S Boothroyd, A |
| author_sort | Taylor, A |
| collection | OXFORD |
| description | We report neutron inelastic scattering measurements on the stoichiometric iron-based superconductor LiFeAs. We find evidence for (i) magnetic scattering consistent with strong antiferromagnetic fluctuations, and (ii) an increase in intensity in the superconducting state at low energies, similar to the resonant magnetic excitation observed in other iron-based superconductors. The results do not support a recent theoretical prediction of spin-triplet p-wave superconductivity in LiFeAs, and instead suggest that the mechanism of superconductivity is similar to that in the other iron-based superconductors. |
| first_indexed | 2024-03-06T22:51:57Z |
| format | Journal article |
| id | oxford-uuid:5f158cdf-54a5-48eb-a78f-ecedeac81b40 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:51:57Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:5f158cdf-54a5-48eb-a78f-ecedeac81b402022-03-26T17:44:41ZSpin fluctuations in LiFeAs observed by neutron scatteringJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5f158cdf-54a5-48eb-a78f-ecedeac81b40EnglishSymplectic Elements at Oxford2011Taylor, APitcher, MEwings, RPerring, TClarke, SBoothroyd, AWe report neutron inelastic scattering measurements on the stoichiometric iron-based superconductor LiFeAs. We find evidence for (i) magnetic scattering consistent with strong antiferromagnetic fluctuations, and (ii) an increase in intensity in the superconducting state at low energies, similar to the resonant magnetic excitation observed in other iron-based superconductors. The results do not support a recent theoretical prediction of spin-triplet p-wave superconductivity in LiFeAs, and instead suggest that the mechanism of superconductivity is similar to that in the other iron-based superconductors. |
| spellingShingle | Taylor, A Pitcher, M Ewings, R Perring, T Clarke, S Boothroyd, A Spin fluctuations in LiFeAs observed by neutron scattering |
| title | Spin fluctuations in LiFeAs observed by neutron scattering |
| title_full | Spin fluctuations in LiFeAs observed by neutron scattering |
| title_fullStr | Spin fluctuations in LiFeAs observed by neutron scattering |
| title_full_unstemmed | Spin fluctuations in LiFeAs observed by neutron scattering |
| title_short | Spin fluctuations in LiFeAs observed by neutron scattering |
| title_sort | spin fluctuations in lifeas observed by neutron scattering |
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