Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet
The Schwinger Boson mean field theories of the `t-J' model are extended by the consideration of anisotropic order parameters. This has two effects. First, a collinear phase, in which the spins are anti-ferromagnetically aligned in one direction and ferromagnetically aligned in the other, is fou...
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| Format: | Journal article |
| Language: | English |
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1994
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| _version_ | 1826268236107218944 |
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| author | Barford, W Jadhav, S |
| author_facet | Barford, W Jadhav, S |
| author_sort | Barford, W |
| collection | OXFORD |
| description | The Schwinger Boson mean field theories of the `t-J' model are extended by the consideration of anisotropic order parameters. This has two effects. First, a collinear phase, in which the spins are anti-ferromagnetically aligned in one direction and ferromagnetically aligned in the other, is found to be stable over a significant range of the phase diagram. Second, the (1,1) and (1,0) spiral phases become very close in energy. The inclusion of weak intra-sublattice coupling may therefore stabilise the (1,0) spiral with respect to the (1,1) spiral, thus harmonising theory and experiment. |
| first_indexed | 2024-03-06T21:06:34Z |
| format | Journal article |
| id | oxford-uuid:3ca9caf7-4353-4a1c-8ff7-9599ce97f4f9 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:06:34Z |
| publishDate | 1994 |
| record_format | dspace |
| spelling | oxford-uuid:3ca9caf7-4353-4a1c-8ff7-9599ce97f4f92022-03-26T14:14:57ZIncommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnetJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3ca9caf7-4353-4a1c-8ff7-9599ce97f4f9EnglishSymplectic Elements at Oxford1994Barford, WJadhav, SThe Schwinger Boson mean field theories of the `t-J' model are extended by the consideration of anisotropic order parameters. This has two effects. First, a collinear phase, in which the spins are anti-ferromagnetically aligned in one direction and ferromagnetically aligned in the other, is found to be stable over a significant range of the phase diagram. Second, the (1,1) and (1,0) spiral phases become very close in energy. The inclusion of weak intra-sublattice coupling may therefore stabilise the (1,0) spiral with respect to the (1,1) spiral, thus harmonising theory and experiment. |
| spellingShingle | Barford, W Jadhav, S Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet |
| title | Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet |
| title_full | Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet |
| title_fullStr | Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet |
| title_full_unstemmed | Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet |
| title_short | Incommensurate and Collinear Phases in a Doped Quantum Anti-ferromagnet |
| title_sort | incommensurate and collinear phases in a doped quantum anti ferromagnet |
| work_keys_str_mv | AT barfordw incommensurateandcollinearphasesinadopedquantumantiferromagnet AT jadhavs incommensurateandcollinearphasesinadopedquantumantiferromagnet |