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Title: Strain annealing of SiC nanoparticles revealed through Bragg coherent diffraction imaging for quantum technologies

Journal Article · · Physical Review Materials
 [1];  [1];  [2];  [3];  [4];  [1];  [1];  [5];  [5]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Univ. of Chicago, IL (United States). Dept. of Physics; Univ. of Chicago, IL (United States). Inst. for Molecular Engineering
  3. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
  4. Univ. of Chicago, IL (United States). Inst. for Molecular Engineering
  5. Univ. of Chicago, IL (United States). Inst. for Molecular Engineering; Argonne National Lab. (ANL), Argonne, IL (United States). Inst. for Molecular Engineering & Materials Science Division

The crystalline strain properties of nanoparticles have broad implications in a number of emerging fields, including quantum and biological sensing in which heterogeneous internal strain fields are detrimental to performance. Here we used synchrotron-based Bragg coherent x-ray diffraction imaging (BCDI) to measure three-dimensional lattice strain fields within individual 3C-SiC nanoparticles, a candidate host material for quantum sensing, as a function of temperature during and after annealing up to 900 degrees C. We observed pronounced homogenization of the initial strain field at temperatures above 500 degrees C, and we find that the surface layers and central volumes of the nanoparticles reduce strain at similar rates, suggesting a uniform healing mechanism. Thus, we attribute the observed strain homogenization to activation of mobile point defects that annihilate and improve the overall quality of the crystal lattice. This work also establishes the feasibility of performing BCDI at high temperatures (up to 900 degrees C) to map structural hystereses relevant to the processing of quantum nanomaterials.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1466340
Alternate ID(s):
OSTI ID: 1462585
Journal Information:
Physical Review Materials, Vol. 2, Issue 8; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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Cited By (2)

Three-dimensional optical trapping and orientation of microparticles for coherent X-ray diffraction imaging journal February 2019
Electrical and optical control of single spins integrated in scalable semiconductor devices journal December 2019