Mössbauer Method for Measuring Subangstrom Displacements of Thin Films


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Abstract

The first results of Mössbauer spectroscopy measurements of the distribution of the amplitude of mechanical vibrations of a 25-μm-thick stainless steel foil along its surface are presented. The gamma radiation of 57Co with a wavelength of 86 pm has been used for the measurements. Sample vibrations along the direction of gamma radiation propagation have been induced using a polymer piezoelectric transducer. At moderate applied voltages, the measured oscillation amplitude does not exceed 50 pm. The measurement accuracy of the vibration-amplitude distribution along the foil surface is 3–6 pm. This method is proposed to create standards of mechanical displacements that can be used to calibrate tunneling microscopes.

About the authors

R. N. Shakhmuratov

Kazan Physical–Technical Institute, Federal Research Center, Kazan Scientific Center; Kazan Federal University

Author for correspondence.
Email: shakhmuratov@mail.ru
Russian Federation, Kazan, 420029; Kazan, 420008

F. G. Vagizov

Kazan Federal University

Email: shakhmuratov@mail.ru
Russian Federation, Kazan, 420008

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