Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt).
A finite transfer integral t(a) orthogonal to the conducting chains of a highly one-dimensional metal gives rise to empty and filled bands that simulate an indirect-gap semiconductor upon formation of a charge-density wave (CDW). In contrast to semiconductors such as Ge and Si with band gaps approxi...
| Principais autores: | , , , , , , |
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| Formato: | Journal article |
| Idioma: | English |
| Publicado em: |
2005
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| _version_ | 1826304187755921408 |
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| author | McDonald, R Harrison, N Singleton, J Bangura, A Goddard, P Ramirez, A Chi, X |
| author_facet | McDonald, R Harrison, N Singleton, J Bangura, A Goddard, P Ramirez, A Chi, X |
| author_sort | McDonald, R |
| collection | OXFORD |
| description | A finite transfer integral t(a) orthogonal to the conducting chains of a highly one-dimensional metal gives rise to empty and filled bands that simulate an indirect-gap semiconductor upon formation of a charge-density wave (CDW). In contrast to semiconductors such as Ge and Si with band gaps approximately 1 eV, the CDW system possesses an indirect gap with a greatly reduced energy scale, enabling moderate laboratory magnetic fields to have a major effect. The consequent variation of the thermodynamic gap with magnetic field due to Zeeman splitting and Landau quantization enables the electronic band structure parameters (transfer integrals, Fermi velocity) to be determined accurately. These parameters reveal the orbital quantization limit to be reached at approximately 20 T in (Per)2M(mnt)(2) salts, making them highly unlikely candidates for a recently proposed cascade of field-induced CDW states. |
| first_indexed | 2024-03-07T06:14:00Z |
| format | Journal article |
| id | oxford-uuid:f07c0809-1495-47d6-b102-2e44d6b6d94c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:14:00Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:f07c0809-1495-47d6-b102-2e44d6b6d94c2022-03-27T11:48:16ZLandau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt).Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f07c0809-1495-47d6-b102-2e44d6b6d94cEnglishSymplectic Elements at Oxford2005McDonald, RHarrison, NSingleton, JBangura, AGoddard, PRamirez, AChi, XA finite transfer integral t(a) orthogonal to the conducting chains of a highly one-dimensional metal gives rise to empty and filled bands that simulate an indirect-gap semiconductor upon formation of a charge-density wave (CDW). In contrast to semiconductors such as Ge and Si with band gaps approximately 1 eV, the CDW system possesses an indirect gap with a greatly reduced energy scale, enabling moderate laboratory magnetic fields to have a major effect. The consequent variation of the thermodynamic gap with magnetic field due to Zeeman splitting and Landau quantization enables the electronic band structure parameters (transfer integrals, Fermi velocity) to be determined accurately. These parameters reveal the orbital quantization limit to be reached at approximately 20 T in (Per)2M(mnt)(2) salts, making them highly unlikely candidates for a recently proposed cascade of field-induced CDW states. |
| spellingShingle | McDonald, R Harrison, N Singleton, J Bangura, A Goddard, P Ramirez, A Chi, X Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt). |
| title | Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt). |
| title_full | Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt). |
| title_fullStr | Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt). |
| title_full_unstemmed | Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt). |
| title_short | Landau quantization effects in the charge-density-wave system (Per)2M(mnt)2 (where M = Au and Pt). |
| title_sort | landau quantization effects in the charge density wave system per 2m mnt 2 where m au and pt |
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