A thermally compensated tube scanner scanning tunneling microscope (STM) has been constructed and successfully tested. This design utilizes two concentric piezoelectric tubes, one for scanning and one for thermal compensation and inertial sample translation (over several mm), as well as fine adjustment of sample position while in tunneling range. This design eliminates the need for mechanical components such as springs, levers, gears, or stepper motors that are known to result in considerable vibration sensitivity, thermal drift, and lowhyphen;resonance frequencies. This new design demonstrates continuously variablehyphen;temperature operation as well as atomic resolution without vibration isolation for the first time in a STM. Thermal drift of less than 1 Aring;/h and less than 10 Aring;/K have been determined. Also, the lowest mechanical resonance frequency of 21 kHz makes this new design suitable for highhyphen;speed applications such as video rate scanning.
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