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Atomistic Mechanisms for the Thermal Relaxation of Au -hyperdoped Si

Yang, Wenjie; Hudspeth, Quentin; Chow, Philippe K.; Warrender, Jeffrey M.; Ferdous, N.; Ertekin, E.; Malladi, G.; Akey, Austin J.; Aziz, Michael J.; Williams, James


Au-hyperdoped Si produced by ion implantation and pulsed laser melting exhibits sub-band-gap absorption in the near infrared, a property that is interesting for Si photonics. However, the sub-band-gap absorption has previously been shown to be thermally metastable. In this work, we study the atomistic processes that occur during the thermal relaxation of Au-hyperdoped Si. We show that the first step in thermal relaxation is the release of substitutional Au from lattice sites. This process...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Physical Review Applied
DOI: 10.1103/PhysRevApplied.12.024015
Access Rights: Open Access


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