Carrier Scattering Analysis in AlN/GaN HEMT Heterostructures with an Ultrathin AlN Barrier
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Carrier Scattering Analysis in AlN/GaN HEMT Heterostructures with an Ultrathin AlN Barrier
Annotation
PII
S0544126924030086-1
Publication type
Article
Status
Published
Authors
A. S. Gusev 
Affiliation: National Research Nuclear University MEPhI
Pages
265-273
Abstract
Experimental AlN/GaN heterostructures (HSs) with an ultrathin AlN barrier were obtained using molecular beam epitaxy with plasma activation of nitrogen. The layer resistance of the optimized structures was less than 230 Ω/¨. The scattering processes that limit the mobility of two-dimensional electron gas in undoped AlN/GaN HSs with an ultrathin AlN barrier have been studied. It is shown that in the ns range characteristic of AlN/GaN HEMT HSs (ns > 1 × 1013 cm–2), a noticeable contribution to the scattering of charge carriers is made by the roughness of the heterointerface.
Keywords
молекулярно-лучевая эпитаксия GaN ультратонкий AlN барьер транспорт носителей
Received
27.10.2024
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0
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24
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