Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures
Details of the Fermi-surface topology of deuterated κ(BEDT-TFF)2Cu(NCS)2 (where BEDT-TTF ≡ bis(ethylene-dithio)tetrathiafulvalene) have been measured as a function of pressure, and compared with equivalent measurements of the undeuterated salt. We find that the superconducting transition temperature...
| প্রধান লেখক: | , , , , , , , , , , |
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| বিন্যাস: | Journal article |
| ভাষা: | English |
| প্রকাশিত: |
2002
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| _version_ | 1826265179997863936 |
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| author | Biggs, T Klehe, A Singleton, J Bakker, D Symington, J Goddard, P Ardavan, A Hayes, W Schlueter, J Sasaki, T Kurmoo, M |
| author_facet | Biggs, T Klehe, A Singleton, J Bakker, D Symington, J Goddard, P Ardavan, A Hayes, W Schlueter, J Sasaki, T Kurmoo, M |
| author_sort | Biggs, T |
| collection | OXFORD |
| description | Details of the Fermi-surface topology of deuterated κ(BEDT-TFF)2Cu(NCS)2 (where BEDT-TTF ≡ bis(ethylene-dithio)tetrathiafulvalene) have been measured as a function of pressure, and compared with equivalent measurements of the undeuterated salt. We find that the superconducting transition temperature is much more dramatically suppressed by increasing pressure in the deuterated salt. It is suggested that this is linked to pressure-induced changes in the Fermi-surface topology, which occur more rapidly in the deuterated salt than in the undeuterated salt as the pressure is raised. Our data suggest that the negative isotope effect observed on deuteration is due to small differences in Fermi-surface topology caused by the isotopic substitution. |
| first_indexed | 2024-03-06T20:19:36Z |
| format | Journal article |
| id | oxford-uuid:2d55ba85-8176-4b6a-a44b-5a7c36be91da |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:19:36Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:2d55ba85-8176-4b6a-a44b-5a7c36be91da2022-03-26T12:42:20ZComparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressuresJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2d55ba85-8176-4b6a-a44b-5a7c36be91daEnglishSymplectic Elements at Oxford2002Biggs, TKlehe, ASingleton, JBakker, DSymington, JGoddard, PArdavan, AHayes, WSchlueter, JSasaki, TKurmoo, MDetails of the Fermi-surface topology of deuterated κ(BEDT-TFF)2Cu(NCS)2 (where BEDT-TTF ≡ bis(ethylene-dithio)tetrathiafulvalene) have been measured as a function of pressure, and compared with equivalent measurements of the undeuterated salt. We find that the superconducting transition temperature is much more dramatically suppressed by increasing pressure in the deuterated salt. It is suggested that this is linked to pressure-induced changes in the Fermi-surface topology, which occur more rapidly in the deuterated salt than in the undeuterated salt as the pressure is raised. Our data suggest that the negative isotope effect observed on deuteration is due to small differences in Fermi-surface topology caused by the isotopic substitution. |
| spellingShingle | Biggs, T Klehe, A Singleton, J Bakker, D Symington, J Goddard, P Ardavan, A Hayes, W Schlueter, J Sasaki, T Kurmoo, M Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
| title | Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
| title_full | Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
| title_fullStr | Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
| title_full_unstemmed | Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
| title_short | Comparison, of the normal-state properties of kappa-(BEDT-TTF)(2)Cu(NCS)(2) and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
| title_sort | comparison of the normal state properties of kappa bedt ttf 2 cu ncs 2 and its deuterated analogue in high magnetic fields and under high hydrostatic pressures |
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