Imperial College London
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ProfessorBaptisteGault

Faculty of Engineering, Department of Materials

Professor of Atomic-Scale Characterization
 
 
 
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Contact

 

b.gault

 
 
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Location

 

Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Douglas:2023:micmic/ozad020,
author = {Douglas, JO and Conroy, M and Giuliani, F and Gault, B},
doi = {micmic/ozad020},
journal = {Microscopy and Microanalysis},
pages = {1009--1017},
title = {In situ sputtering from the micromanipulator to enable cryogenic preparation of specimens for atom probe tomography by focused-ion beam},
url = {http://dx.doi.org/10.1093/micmic/ozad020},
volume = {29},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Workflows have been developed in the past decade to enable atom probe tomography analysis at cryogenic temperatures. The inability to control the local deposition of the metallic precursor from the gas-injection system (GIS) at cryogenic temperatures makes the preparation of site-specific specimens by using lift-out extremely challenging in the focused-ion beam. Schreiber et al. exploited redeposition to weld the lifted-out sample to a support. Here, we build on their approach to attach the region-of-interest and additionally strengthen the interface with locally sputtered metal from the micromanipulator. Following standard focused-ion beam annular milling, we demonstrate atom probe analysis of Si in both laser pulsing and voltage mode, with comparable analytical performance as a presharpened microtip coupon. Our welding approach is versatile, as various metals could be used for sputtering, and allows similar flexibility as the GIS in principle.
AU  - Douglas,JO
AU  - Conroy,M
AU  - Giuliani,F
AU  - Gault,B
DO  - micmic/ozad020
EP  - 1017
PY  - 2023///
SN  - 1083-0375
SP  - 1009
TI  - In situ sputtering from the micromanipulator to enable cryogenic preparation of specimens for atom probe tomography by focused-ion beam
T2  - Microscopy and Microanalysis
UR  - http://dx.doi.org/10.1093/micmic/ozad020
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000962162900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://doi.org/10.1093/micmic/ozad020
UR  - http://hdl.handle.net/10044/1/107458
VL  - 29
ER  -
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