@article{533df2db022848188db1d8833f59f5dd,
title = "Bending strain in 3D topological semi-metals",
abstract = "We present an experimental set-up for the controlled application of strain gradients by mechanical piezoactuation on 3D crystalline microcantilevers that were fabricated by focused ion beam machining. A simple sample design tailored for transport characterization under strain at cryogenic temperatures is proposed. The topological semi-metal Cd3As2 serves as a test bed for the method, and we report extreme strain gradients of up to 1.3\%μm-1 at a surface strain value of ≈ 0.65\% at 4 K. Interestingly, the unchanged quantum transport of the cantilever suggests that the bending cycle does not induce defects via plastic deformation. This approach is a first step towards realizing transport phenomena based on structural gradients, such as artificial gauge fields in topological materials.",
keywords = "CdAs, focused ion beam machining, pseudo-electromagnetic fields, strain gradients",
author = "Jonas Diaz and Carsten Putzke and Xiangwei Huang and Amelia Estry and Analytis, \{James G.\} and Daniel Sabsovich and Grushin, \{Adolfo G.\} and Roni Ilan and Moll, \{Philip J.W.\}",
note = "Publisher Copyright: {\textcopyright} 2021 The Author(s). Published by IOP Publishing Ltd.",
year = "2022",
month = feb,
day = "24",
doi = "10.1088/1361-6463/ac357f",
language = "אנגלית",
volume = "55",
journal = "Journal of Physics D: Applied Physics",
issn = "0022-3727",
publisher = "Institute of Physics",
number = "8",
}