Effect of magnesium doping on the orbital and magnetic order in LiNiO(2)
In LiNiO2, the Ni3+ ions, with S=1/2 and twofold orbital degeneracy, are arranged on a triangular lattice. Using muon-spin relaxation and electron-spin resonance (ESR), we show that magnesium doping does not stabilize any magnetic or orbital order despite the absence of interplane Ni2+. A disordered...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2008
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| _version_ | 1797105185717223424 |
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| author | Bonda, M Holzapfel, M de Brion, S Darie, C Feher, T Baker, P Lancaster, T Blundell, S Pratt, F |
| author_facet | Bonda, M Holzapfel, M de Brion, S Darie, C Feher, T Baker, P Lancaster, T Blundell, S Pratt, F |
| author_sort | Bonda, M |
| collection | OXFORD |
| description | In LiNiO2, the Ni3+ ions, with S=1/2 and twofold orbital degeneracy, are arranged on a triangular lattice. Using muon-spin relaxation and electron-spin resonance (ESR), we show that magnesium doping does not stabilize any magnetic or orbital order despite the absence of interplane Ni2+. A disordered, slowly fluctuating state develops below 12 K. In addition, we find that magnons are excited on the time scale of the ESR experiment. At the same time, a g factor anisotropy is observed, in agreement with | 3 z2 - r2 orbital occupancy. © 2008 The American Physical Society. |
| first_indexed | 2024-03-07T06:43:52Z |
| format | Journal article |
| id | oxford-uuid:fa373de3-ae49-401b-be24-f6d5234bb28d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:43:52Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:fa373de3-ae49-401b-be24-f6d5234bb28d2022-03-27T13:03:59ZEffect of magnesium doping on the orbital and magnetic order in LiNiO(2)Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fa373de3-ae49-401b-be24-f6d5234bb28dEnglishSymplectic Elements at Oxford2008Bonda, MHolzapfel, Mde Brion, SDarie, CFeher, TBaker, PLancaster, TBlundell, SPratt, FIn LiNiO2, the Ni3+ ions, with S=1/2 and twofold orbital degeneracy, are arranged on a triangular lattice. Using muon-spin relaxation and electron-spin resonance (ESR), we show that magnesium doping does not stabilize any magnetic or orbital order despite the absence of interplane Ni2+. A disordered, slowly fluctuating state develops below 12 K. In addition, we find that magnons are excited on the time scale of the ESR experiment. At the same time, a g factor anisotropy is observed, in agreement with | 3 z2 - r2 orbital occupancy. © 2008 The American Physical Society. |
| spellingShingle | Bonda, M Holzapfel, M de Brion, S Darie, C Feher, T Baker, P Lancaster, T Blundell, S Pratt, F Effect of magnesium doping on the orbital and magnetic order in LiNiO(2) |
| title | Effect of magnesium doping on the orbital and magnetic order in LiNiO(2) |
| title_full | Effect of magnesium doping on the orbital and magnetic order in LiNiO(2) |
| title_fullStr | Effect of magnesium doping on the orbital and magnetic order in LiNiO(2) |
| title_full_unstemmed | Effect of magnesium doping on the orbital and magnetic order in LiNiO(2) |
| title_short | Effect of magnesium doping on the orbital and magnetic order in LiNiO(2) |
| title_sort | effect of magnesium doping on the orbital and magnetic order in linio 2 |
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