Cantilever – a component of the atomic force microscope.
The cantilever – console bracket – one of the main components parts (detail) atomic force microscope. His quality depends on the successful operation of the microscope in General.
The cantilever – console bracket – one of the main components of an atomicforce microscope. On the one hand is a tiny beam with a thickness of 0.1 to 5 microns and a width from 10 to 40 µm, with a different strip length from 100 to 200 µm, which is the probe for the sample surface. One side of the cantilever beam is a mirror. This is done for the optical control of the bending of the cantilever beam. On the other opposite side of the beam at the end of the strip cantilever is the needle, which interacts with the measurement object. The needle has a tip, the radius of which is of the order of one nanometer.
The cantilever can operate in contact and contactless mode scanning.
This small detail is the basic measuring element of atomic force microscopes, and wears out quickly.
His quality depends on the successful operation of the atomic force microscope as a whole.
The cantilevers are made of silicon, silicon nitride or diamond, and use coatings TiN, W2C, Pt, Au, or magnetic materials of Fe-Ni/Cr, Co/Cr, CoSm/Cr.
The geometrical dimensions of the cantilever are essential. They determine its mechanical properties. So, from the length, width, thickness, and nature of the materialfrom which made the cantilever depends on its stiffness. What the cantilever is longer and thinner, the more easily it bends.
If the cantilever didn’t get to bend, then cart it to the surface through a system of nanopositioning, the needle just would have damaged the surface, vitkovskis it. But always pick the cantilever is so soft that when approaching to the surface he could bend, and the surface would remain intact.
The cantilevers are also used for surface modification. Using hard cantilevers (and a diamond needle), you can do engraving and spend “nanoscience” – to squeeze out on the surface of the tiny pictures (nanoindentor).