Instruments

NANOPROBE @ QUEEN'S
We are presently constructing a scanning probe that will allow multiple information channels to be collected concurrently. In many respects the microscope will function like a sensory system that collects information from our five physical senses.

LOW TEMPERATURE SCANNING TUNNELING MICROSCOPE
Our main instrument is currently a variable temperature Pan-style scanning tunneling microscope that operates in the temperature range between room temperature and 8 K. Sample cooling is achieved with a continuous flow cyrostat. This microscope is the work of Ben Drevniok.

BEETLE-TYPE SCANNING TUNNELING MICROSCOPES
We have used beetle-type scanning tunneling microscopes for over a decade. A rendering of our beetle-type scanning tunneling microscope (BELOW LEFT; Antje Moffat) showing both the beetle and the sample. The scanner containing the tip is located in the centre of the beetle chassis that can be moved in two orthogonal directions, parallel and perpendicular to the sample. The sample and scanner are inclined by 6 deg. with respect horizontal and vertical respectively. Consequently, the tip approaches the sample as the beetle is walked towards the sample. The bar allows the beetle to be lifted off the stage when it is not in use using a manipulator.

	ABOVE RIGHT: An Inventor rendering of the beetle (MacLeod). LEFT: The beetle in scanning position on a sample holder. The beetle manipulator that is used to raise and lower the beetle onto the sample is shown.