Dynamics and transport properties of heavy fermions: theory
The paramagnetic phase of heavy fermion systems is investigated, using a non-perturbative local moment approach to the asymmetric periodic Anderson model within the framework of dynamical mean-field theory. The natural focus is on the strong coupling Kondo lattice regime wherein single-particle spec...
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| Format: | Journal article |
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2005
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| _version_ | 1797081797772705792 |
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| author | Logan, D Vidhyadhiraja, N |
| author_facet | Logan, D Vidhyadhiraja, N |
| author_sort | Logan, D |
| collection | OXFORD |
| description | The paramagnetic phase of heavy fermion systems is investigated, using a non-perturbative local moment approach to the asymmetric periodic Anderson model within the framework of dynamical mean-field theory. The natural focus is on the strong coupling Kondo lattice regime wherein single-particle spectra, scattering rates, dc transport and optics are found to exhibit (ω/ωL,T/ωL) scaling in terms of a single underlying low-energy coherence scale ωL. Dynamics/transport on all relevant (ω,T) scales are encompassed, from the low-energy behaviour characteristic of the lattice coherent Fermi liquid, through incoherent effective single-impurity physics likewise found to arise in the universal scaling regime, to non-universal high-energy scales; and which description in turn enables viable quantitative comparison to experiment. © IOP Publishing Ltd. |
| first_indexed | 2024-03-07T01:19:06Z |
| format | Journal article |
| id | oxford-uuid:8fba4396-9c43-4774-abb2-eacf5b9a5b7e |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:19:06Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:8fba4396-9c43-4774-abb2-eacf5b9a5b7e2022-03-26T23:06:23ZDynamics and transport properties of heavy fermions: theoryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8fba4396-9c43-4774-abb2-eacf5b9a5b7eSymplectic Elements at Oxford2005Logan, DVidhyadhiraja, NThe paramagnetic phase of heavy fermion systems is investigated, using a non-perturbative local moment approach to the asymmetric periodic Anderson model within the framework of dynamical mean-field theory. The natural focus is on the strong coupling Kondo lattice regime wherein single-particle spectra, scattering rates, dc transport and optics are found to exhibit (ω/ωL,T/ωL) scaling in terms of a single underlying low-energy coherence scale ωL. Dynamics/transport on all relevant (ω,T) scales are encompassed, from the low-energy behaviour characteristic of the lattice coherent Fermi liquid, through incoherent effective single-impurity physics likewise found to arise in the universal scaling regime, to non-universal high-energy scales; and which description in turn enables viable quantitative comparison to experiment. © IOP Publishing Ltd. |
| spellingShingle | Logan, D Vidhyadhiraja, N Dynamics and transport properties of heavy fermions: theory |
| title | Dynamics and transport properties of heavy fermions: theory |
| title_full | Dynamics and transport properties of heavy fermions: theory |
| title_fullStr | Dynamics and transport properties of heavy fermions: theory |
| title_full_unstemmed | Dynamics and transport properties of heavy fermions: theory |
| title_short | Dynamics and transport properties of heavy fermions: theory |
| title_sort | dynamics and transport properties of heavy fermions theory |
| work_keys_str_mv | AT logand dynamicsandtransportpropertiesofheavyfermionstheory AT vidhyadhirajan dynamicsandtransportpropertiesofheavyfermionstheory |