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Quantum and transport lifetimes in a tunable low-density AlGaN/GaN two-dimensional electron gas

Abstract:

We experimentally determine the density dependence of the transport lifetime (τ t) obtained from low-field Hall measurements and the quantum lifetime (τ q) derived from analysis of the amplitude of Shubnikov-de Haas oscillations in a tunable high mobility two-dimensional electron gas (2DEG) in a Al 0.06Ga 0.94N/GaN heterostructure. Using an insulated gate structure, we are able to tune the 2DEG...

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Publication status:
Published

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Publisher copy:
10.1063/1.1827939

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Role:
Author
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Journal:
APPLIED PHYSICS LETTERS
Volume:
85
Issue:
22
Pages:
5278-5280
Publication date:
2004-11-29
DOI:
ISSN:
0003-6951
URN:
uuid:c7555ffc-ee39-4a27-b5ef-613674078bca
Source identifiers:
168167
Local pid:
pubs:168167
Language:
English

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