self-organization;
nanocrystalline metal;
3D assembly;
reactive ion etching;
focused ion beam;
INDUCED STRESS;
POLYCRYSTALLINE;
IMPLANTATION;
FILMS;
NANOSTRUCTURES;
RELAXATION;
CRYSTAL;
GROWTH;
FLOW;
FIB;
D O I:
10.1002/adma.201202549
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Ion processing of the reactive surface of a free-standing polycrystalline metal film induces a flow of atoms into grain boundaries, resulting in plastic deformation. A thorough experimental and theoretical analysis of this process is presented, along with the demonstration of novel engineering concepts for precisely controlled 3D assembly at micro- and nanoscopic scales.