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Title: Ab initio modeling of zincblende AlN layer in Al-AlN-TiN multilayers

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4953593· OSTI ID:1258604
 [1];  [2];  [1]
  1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  2. Univ. of Nebraska, Lincoln, NE (United States)

An unusual growth mechanism of metastable zincblende AlN thin film by diffusion of nitrogen atoms into Al lattice is established. Using first-principles density functional theory, we studied the possibility of thermodynamic stability of AlN as a zincblende phase due to epitaxial strains and interface effect, which fails to explain the formation of zincblende AlN. We then compared the formation energetics of rocksalt and zincblende AlN in fcc Al through direct diffusion of nitrogen atoms to Al octahedral and tetrahedral interstitials. Furthermore, the formation of a zincblende AlN thin film is determined to be a kinetically driven process, not a thermodynamically driven process.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1258604
Alternate ID(s):
OSTI ID: 1256778
Report Number(s):
LA-UR-16-22656; JAPIAU
Journal Information:
Journal of Applied Physics, Vol. 119, Issue 22; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Cited By (4)

Mechanically controlling the reversible phase transformation from zinc blende to wurtzite in AlN journal March 2017
Piezoresistivity of InAsP Nanowires: Role of Crystal Phases and Phosphorus Atoms in Strain-Induced Channel Conductances journal September 2019
Mechanically controlling the reversible phase transformation from zinc blende to wurtzite in AlN [Supplemental Data] dataset April 2017
Mechanically controlling the reversible phase transformation from zinc blende to wurtzite in AlN April 2017

Figures / Tables (10)


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