Welcome to the SPM Laboratory!
We study nanoscale science, through the use of scanning probe microscopy (SPM). Specifically, we perform atomic force microscopy (AFM) which brings a small cantilever and tip (about 20nm diameter) either very close to or into contact with a surface in order to measure local properties. In this way, topography, magnetism, conductance and many other properties can be locally mapped on a sample. There are applications to materials science, device physics, and cell biology, to name a few.
The AFM we use is an Asylum Research MFP-3D, which provides full access to the code controlling the SPM. Add-ons to the system include:
- enclosed heater stage, heat in inert gas to 250 C
- fluid heater stage, heat in liquid to 80 C
- in-plane magnetic field up to 2500 Oe, using a rare earth magnet
- current preamplifier on the tip holder
Research is supported by the National Science Foundation, the Clare Boothe Luce Foundation, and Research Corporation for Scientific Advancement.