Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5
We have used polarized-neutron inelastic scattering to resolve the spin fluctuations in superconducting FeSe0.5Te0.5 into components parallel and perpendicular to the layers. A spin resonance at an energy of 6.5 meV is observed to develop below T_c in both fluctuation components. The resonance peak...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Published: |
2010
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| _version_ | 1826278077522509824 |
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| author | Babkevich, P Roessli, B Gvasaliya, SN Regnault, L Freeman, P Pomjakushina, E Conder, K Boothroyd, A |
| author_facet | Babkevich, P Roessli, B Gvasaliya, SN Regnault, L Freeman, P Pomjakushina, E Conder, K Boothroyd, A |
| author_sort | Babkevich, P |
| collection | OXFORD |
| description | We have used polarized-neutron inelastic scattering to resolve the spin fluctuations in superconducting FeSe0.5Te0.5 into components parallel and perpendicular to the layers. A spin resonance at an energy of 6.5 meV is observed to develop below T_c in both fluctuation components. The resonance peak is anisotropic, with the in-plane component slightly larger than the out-of-plane component. Away from the resonance peak the magnetic fluctuations are isotropic in the energy range studied. The results are consistent with a dominant singlet pairing state with s^{\pm} symmetry, with a possible minority component of different symmetry. |
| first_indexed | 2024-03-06T23:38:33Z |
| format | Journal article |
| id | oxford-uuid:6e7e821b-5090-4df2-a6e9-f9e742c170a0 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:38:33Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:6e7e821b-5090-4df2-a6e9-f9e742c170a02022-03-26T19:24:54ZSpin anisotropy of the resonance in superconducting FeSe0.5Te0.5Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6e7e821b-5090-4df2-a6e9-f9e742c170a0Symplectic Elements at Oxford2010Babkevich, PRoessli, BGvasaliya, SNRegnault, LFreeman, PPomjakushina, EConder, KBoothroyd, AWe have used polarized-neutron inelastic scattering to resolve the spin fluctuations in superconducting FeSe0.5Te0.5 into components parallel and perpendicular to the layers. A spin resonance at an energy of 6.5 meV is observed to develop below T_c in both fluctuation components. The resonance peak is anisotropic, with the in-plane component slightly larger than the out-of-plane component. Away from the resonance peak the magnetic fluctuations are isotropic in the energy range studied. The results are consistent with a dominant singlet pairing state with s^{\pm} symmetry, with a possible minority component of different symmetry. |
| spellingShingle | Babkevich, P Roessli, B Gvasaliya, SN Regnault, L Freeman, P Pomjakushina, E Conder, K Boothroyd, A Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 |
| title | Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 |
| title_full | Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 |
| title_fullStr | Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 |
| title_full_unstemmed | Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 |
| title_short | Spin anisotropy of the resonance in superconducting FeSe0.5Te0.5 |
| title_sort | spin anisotropy of the resonance in superconducting fese0 5te0 5 |
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