Theory of momentum-resolved phonon spectroscopy in the electron microscope
We provide a theoretical framework for the prediction and interpretation of momentum-dependent phonon spectra due to coherent inelastic scattering of electrons. We complete the approach with first-principles lattice dynamics using periodic density functional theory and compare to recent electron ene...
| Asıl Yazarlar: | , , , , , |
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| Materyal Türü: | Journal article |
| Baskı/Yayın Bilgisi: |
American Physical Society
2019
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| _version_ | 1826302360575541248 |
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| author | Nicholls, R Hage, F McCulloch, D Ramasse, Q Refson, K Yates, J |
| author_facet | Nicholls, R Hage, F McCulloch, D Ramasse, Q Refson, K Yates, J |
| author_sort | Nicholls, R |
| collection | OXFORD |
| description | We provide a theoretical framework for the prediction and interpretation of momentum-dependent phonon spectra due to coherent inelastic scattering of electrons. We complete the approach with first-principles lattice dynamics using periodic density functional theory and compare to recent electron energy-loss measurements on cubic and hexagonal boron nitride performed within a scanning transmission electron microscope. The combination of theory and experiment provides the ability to interpret momentum-dependent phonon spectra obtained at nanometer spatial resolution in the electron microscope. |
| first_indexed | 2024-03-07T05:46:23Z |
| format | Journal article |
| id | oxford-uuid:e75d34c2-8d29-4a0b-a077-2a932c9d48cb |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:46:23Z |
| publishDate | 2019 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:e75d34c2-8d29-4a0b-a077-2a932c9d48cb2022-03-27T10:38:01ZTheory of momentum-resolved phonon spectroscopy in the electron microscopeJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e75d34c2-8d29-4a0b-a077-2a932c9d48cbSymplectic Elements at OxfordAmerican Physical Society2019Nicholls, RHage, FMcCulloch, DRamasse, QRefson, KYates, JWe provide a theoretical framework for the prediction and interpretation of momentum-dependent phonon spectra due to coherent inelastic scattering of electrons. We complete the approach with first-principles lattice dynamics using periodic density functional theory and compare to recent electron energy-loss measurements on cubic and hexagonal boron nitride performed within a scanning transmission electron microscope. The combination of theory and experiment provides the ability to interpret momentum-dependent phonon spectra obtained at nanometer spatial resolution in the electron microscope. |
| spellingShingle | Nicholls, R Hage, F McCulloch, D Ramasse, Q Refson, K Yates, J Theory of momentum-resolved phonon spectroscopy in the electron microscope |
| title | Theory of momentum-resolved phonon spectroscopy in the electron microscope |
| title_full | Theory of momentum-resolved phonon spectroscopy in the electron microscope |
| title_fullStr | Theory of momentum-resolved phonon spectroscopy in the electron microscope |
| title_full_unstemmed | Theory of momentum-resolved phonon spectroscopy in the electron microscope |
| title_short | Theory of momentum-resolved phonon spectroscopy in the electron microscope |
| title_sort | theory of momentum resolved phonon spectroscopy in the electron microscope |
| work_keys_str_mv | AT nichollsr theoryofmomentumresolvedphononspectroscopyintheelectronmicroscope AT hagef theoryofmomentumresolvedphononspectroscopyintheelectronmicroscope AT mccullochd theoryofmomentumresolvedphononspectroscopyintheelectronmicroscope AT ramasseq theoryofmomentumresolvedphononspectroscopyintheelectronmicroscope AT refsonk theoryofmomentumresolvedphononspectroscopyintheelectronmicroscope AT yatesj theoryofmomentumresolvedphononspectroscopyintheelectronmicroscope |