The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect
Fractional Quantum Hall Effect measurements in 50 T pulsed magnetic fields, are analysed in the Composite Fermion (CF) model. Energy gaps of all fractions in the principal series around nu=1/2 show a simple, sample independent, increase with the CF effective field following root B*. The spin polaris...
| Main Authors: | , , , , , , |
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| Format: | Conference item |
| Published: |
1996
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| _version_ | 1826258303977521152 |
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| author | Leadley, DR vanderBurgt, M Nicholas, R Gee, P Singleton, J Harris, J Foxon, C |
| author_facet | Leadley, DR vanderBurgt, M Nicholas, R Gee, P Singleton, J Harris, J Foxon, C |
| author_sort | Leadley, DR |
| collection | OXFORD |
| description | Fractional Quantum Hall Effect measurements in 50 T pulsed magnetic fields, are analysed in the Composite Fermion (CF) model. Energy gaps of all fractions in the principal series around nu=1/2 show a simple, sample independent, increase with the CF effective field following root B*. The spin polarised state at nu=5/3 follows exactly the same behaviour, but for mixed spin states like 4/3 the energy gap collapses when B*>1 T. |
| first_indexed | 2024-03-06T18:31:52Z |
| format | Conference item |
| id | oxford-uuid:09ec19bf-3a9d-4077-9282-286c3c0cb426 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:31:52Z |
| publishDate | 1996 |
| record_format | dspace |
| spelling | oxford-uuid:09ec19bf-3a9d-4077-9282-286c3c0cb4262022-03-26T09:21:02ZThe unifying role of effective field in the composite fermion model of the fractional quantum Hall effectConference itemhttp://purl.org/coar/resource_type/c_5794uuid:09ec19bf-3a9d-4077-9282-286c3c0cb426Symplectic Elements at Oxford1996Leadley, DRvanderBurgt, MNicholas, RGee, PSingleton, JHarris, JFoxon, CFractional Quantum Hall Effect measurements in 50 T pulsed magnetic fields, are analysed in the Composite Fermion (CF) model. Energy gaps of all fractions in the principal series around nu=1/2 show a simple, sample independent, increase with the CF effective field following root B*. The spin polarised state at nu=5/3 follows exactly the same behaviour, but for mixed spin states like 4/3 the energy gap collapses when B*>1 T. |
| spellingShingle | Leadley, DR vanderBurgt, M Nicholas, R Gee, P Singleton, J Harris, J Foxon, C The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect |
| title | The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect |
| title_full | The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect |
| title_fullStr | The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect |
| title_full_unstemmed | The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect |
| title_short | The unifying role of effective field in the composite fermion model of the fractional quantum Hall effect |
| title_sort | unifying role of effective field in the composite fermion model of the fractional quantum hall effect |
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