Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y
We report high-field magnetotransport studies on quasi-two dimensional beta"-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]Y-. where Y is a solvent in the anionic layer. By changing the size of the solvent the low temperatures electronic behaviour varies from superconducting (for larger solvents, Y=C6H5NO2 and...
| Main Authors: | , , , , , , |
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| Format: | Conference item |
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2006
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| _version_ | 1826289884078276608 |
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| author | Coldea, A Bangura, A Singleton, J Ardavan, A Akutsu-Sato, A Akutsu, H Day, P |
| author_facet | Coldea, A Bangura, A Singleton, J Ardavan, A Akutsu-Sato, A Akutsu, H Day, P |
| author_sort | Coldea, A |
| collection | OXFORD |
| description | We report high-field magnetotransport studies on quasi-two dimensional beta"-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]Y-. where Y is a solvent in the anionic layer. By changing the size of the solvent the low temperatures electronic behaviour varies from superconducting (for larger solvents, Y=C6H5NO2 and C6H5CN) to metallic (for smaller solvents, Y=C5H5N and CH2O2). These changes in the ground state are connected with modifications of the Fermi surface, which varies from having one or two pockets for the superconducting charge-transfer salts to at least four pockets in the case of metallic ones. When superconducting, the materials have very large in-plane critical fields (up to 32 T) and enhanced effective masses compared with the metallic compounds. The role of the charge-order fluctuations in stabilizing the superconducting ground state and the effects of intrinsic local disorder is discussed. |
| first_indexed | 2024-03-07T02:35:42Z |
| format | Conference item |
| id | oxford-uuid:a8b8bc0f-b0dd-4bc4-ad32-8c67ee7f67b3 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:35:42Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:a8b8bc0f-b0dd-4bc4-ad32-8c67ee7f67b32022-03-27T03:03:30ZTuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot YConference itemhttp://purl.org/coar/resource_type/c_5794uuid:a8b8bc0f-b0dd-4bc4-ad32-8c67ee7f67b3Symplectic Elements at Oxford2006Coldea, ABangura, ASingleton, JArdavan, AAkutsu-Sato, AAkutsu, HDay, PWe report high-field magnetotransport studies on quasi-two dimensional beta"-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]Y-. where Y is a solvent in the anionic layer. By changing the size of the solvent the low temperatures electronic behaviour varies from superconducting (for larger solvents, Y=C6H5NO2 and C6H5CN) to metallic (for smaller solvents, Y=C5H5N and CH2O2). These changes in the ground state are connected with modifications of the Fermi surface, which varies from having one or two pockets for the superconducting charge-transfer salts to at least four pockets in the case of metallic ones. When superconducting, the materials have very large in-plane critical fields (up to 32 T) and enhanced effective masses compared with the metallic compounds. The role of the charge-order fluctuations in stabilizing the superconducting ground state and the effects of intrinsic local disorder is discussed. |
| spellingShingle | Coldea, A Bangura, A Singleton, J Ardavan, A Akutsu-Sato, A Akutsu, H Day, P Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y |
| title | Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y |
| title_full | Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y |
| title_fullStr | Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y |
| title_full_unstemmed | Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y |
| title_short | Tuning electronic ground states by using chemical pressure on quasi-two dimensional beta ''-(BEDT-TTF)(4)[(H3O)M(C2O4)(3)]center dot Y |
| title_sort | tuning electronic ground states by using chemical pressure on quasi two dimensional beta bedt ttf 4 h3o m c2o4 3 center dot y |
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