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

Zhen Li, Satyesh Yadav, Youxing Chen, Nan Li, Xiang Yang Liu, Jian Wang, Shixiong Zhang, Jon Kevin Baldwin, Amit Misra, Nathan Mara

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

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, taking AlN as a representative III–V compound, we investigate how to control the synthesized phase structure to either wz or zb phase by tuning the interfacial strain. 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.

Original languageEnglish (US)
Pages (from-to)426-432
Number of pages7
JournalMaterials Research Letters
Volume5
Issue number6
DOIs
StatePublished - Nov 2 2017

Bibliographical note

Publisher Copyright:
© 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • Reversible phase transformation
  • aluminum nitride
  • in situ TEM
  • wurtzite
  • zinc blende

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