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Nonadiabatic Kohn anomaly in heavily boron-doped diamond.

Abstract:

We report evidence of a nonadiabatic Kohn anomaly in boron-doped diamond, using a joint theoretical and experimental analysis of the phonon dispersion relations. We demonstrate that standard calculations of phonons using density-functional perturbation theory are unable to reproduce the dispersion relations of the high-energy phonons measured by high-resolution inelastic x-ray scattering. On the contrary, by taking into account nonadiabatic effects within a many-body field-theoretic framework...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevLett.119.017001

Authors


Publisher:
American Physical Society
Journal:
Physical Review Letters More from this journal
Volume:
119
Issue:
1
Pages:
017001
Publication date:
2017-07-01
Acceptance date:
2017-06-06
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:709580
UUID:
uuid:d93e99d4-46fb-4dfd-8204-b05097674c68
Local pid:
pubs:709580
Source identifiers:
709580
Deposit date:
2017-08-04

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