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Title: Mechanically controlling the reversible phase transformation from zinc blende to wurtzite in AlN

III–V and other binary octet semiconductors often take two phase forms—wurtzite (wz) and zinc blende (zb) crystal structures—with distinct functional performance at room temperature. Here, we investigate how to control the synthesized phase structure to either wz or zb phase by tuning the interfacial strain by taking AlN as a representative III–V compound. Furthermore, by applying in situ mechanical tests at atomic scale in a transmission electron microscope, we observed the reversible phase transformation from zb to wz, and characterized the transition path—the collective glide of Shockley partials on every two {111} planes of the zb AlN.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [2] ; ORCiD logo [5] ;  [6] ;  [3] ;  [7] ;  [4]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies; Indiana Univ., Bloomington, IN (United States). Dept. of Physics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies, Inst. for Materials Science
  5. Univ. of Nebraska, Lincoln, NE (United States). Mechanical and Materials Engineering
  6. Department of Physics, Indiana University, Bloomington, IN, USA
  7. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Materials Science
Publication Date:
Report Number(s):
LA-UR-17-27506
Journal ID: ISSN 2166-3831; TRN: US1702393
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 5; Journal Issue: 6; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; reversible phase transformation; in situ TEM; aluminum nitride; wurtzite; zinc blende
OSTI Identifier:
1398929