Journal article
Intrinsic to extrinsic phonon lifetime transition in a GaAs-AlAs superlattice.
- Abstract:
-
We have measured the lifetimes of two zone-center longitudinal acoustic phonon modes, at 320 and 640 GHz, in a 14 nm GaAs/2 nm AlAs superlattice structure. By comparing measurements at 296 and 79 K we separate the intrinsic contribution to phonon lifetime determined by phonon-phonon scattering from the extrinsic contribution due to defects and interface roughness. At 296 K, the 320 GHz phonon lifetime has approximately equal contributions from intrinsic and extrinsic scattering, whilst at 640...
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- Publication status:
- Published
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- Publisher copy:
- 10.1088/0953-8984/25/29/295401
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Bibliographic Details
- Journal:
- Journal of physics. Condensed matter : an Institute of Physics journal
- Volume:
- 25
- Issue:
- 29
- Pages:
- 295401
- Publication date:
- 2013-07-01
- DOI:
- EISSN:
-
1361-648X
- ISSN:
-
0953-8984
- Source identifiers:
-
411377
Item Description
- Language:
- English
- Keywords:
- Pubs id:
-
pubs:411377
- UUID:
-
uuid:04a71a67-e8fa-489b-8a19-c6974a52157c
- Local pid:
- pubs:411377
- Deposit date:
- 2013-11-16
Terms of use
- Copyright date:
- 2013
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