Operator microscopes - Import export

The magnetic system of this field source is also built on the principle of nested cylindrical Halbach-structures. An important feature is the presence of two motors, controlled independently, so it is possible to manage the change not only the magnitude but also the direction of the magnetic field. Because the device was designed for operation together with an optical microscope, the vertical size of the system near the working region is reduced to 90 mm. Stepper motors, that turn the two magnetic subsystems, are located on the sides of the casing

Operating a scanning probe microscope, where the tipsample force interactions are measured with high precision and at small scales, requires an environment that is free of the external perturbations caused by vibrational and acoustic noise. Just as important is the temperature stability of the microscope in order to ensure a low thermal drift of a sample during experiments. A unique feature of Atomic Force Microscopy (AFM) and Scanning Tunneling Microscopy (STM) is a relatively slow feedback mechanism in most of their modes. Therefore, a large number of experiments such as imaging at the atomicscale, profiling of corrugated surfaces, collecting of local force curves in the force volume operation, among others will benefit from lowthermal drift conditions. A stable position of the sample will also help to examine the same surface region with different AFM modes, making the surface analysis more comprehensive.