Fig. 1: Schematics revealing the thermal and athermal effects using micromachined structures.
From: Micromachined structures decoupling Joule heating and electron wind force
a Schematic of the sample geometry. Micromachining is performed on the surface of the central area of the sample, and RD, ND, and TD represent the rolling, normal, and transverse directions, respectively. The sample and current directions are toward the RD direction. b Pre-processed micro-pillar using the FIB method, where markers A and B represent the states before the ECT application. c Schematic of the current and heat flows near the micromachined pillar and matrix region, marked as A’ and B’, respectively. d Removal of the oxide layer (caused by Joule heating) using ion milling method. e Pre-processed micro-cantilever using the FIB method, where markers C and D represent the states before the ECT application. f Schematic of the current and heat flows at the micromachined cantilever (C’) and matrix region (D’). g FIB-processed cantilever in the matrix region. h Further processing for TEM observation; the extracted cantilevers are fixed onto the columns of a NanoMesh and thinned down to approximately 100 nm.
