Stiffness calibration of qplus sensors at low temperature through thermal noise measurements

HIGHLIGHTS

• What: The authors report the stiffness calibration of a particular type of qPlus sensor in UHV and at 9.8 K by means of thermal noise measurements. The aim of this work is to propose a framework based on thermal noise measurement to calibrate the stiffness of qPlus sensors operated in a LT UHV system. The experimental results presented in this work have been acquired with a closed-cycle UHV SPM Infinity microscope from Scienta-Omicron, operated at 9.8 K. Equivalent SHO Then, the authors assess how much the estimated stiffness is falsified if only a . . .
  

   

  

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