The potential of higher eigenmodes in magnetic resonance force microscopy

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The potential of higher eigenmodes in magnetic resonance force microscopy

Type: Master thesis
Title: The potential of higher eigenmodes in magnetic resonance force microscopy
Author: Donkersloot, RembrandtDonkersloot, Rembrandt
Issue Date: 2016-09-30
Keywords: magnetic resonance force microscopy, force sensor, higher resonance modes cantilever, millikelvin
Abstract: An indispensable ingredient for nanoscale imaging within the field of Magnetic Resonance Force Microscopy (MRFM) is a radiofrequency (RF) source. Conventional RF-sources constitute a significant impediment for MRFM experiments at extreme low temperatures and consequently form a major obstacle towards the single-spin measurement. In this thesis we have introduced a non-trivial method where an intrinsic property of an MRFM force sensor is exploited for the generation of an ultra-low dissipative RF-field. Using MRFM as a probe for local nuclear magnetic resonance (NMR) experiments on copper nuclei at millikelvin temperatures, we have demonstrated that the correct implementation of this feature resulted in an amplification of the NMR signal by more than a factor 2. Based on these findings, we propose an adjusted design of the force sensor that could contribute towards a significantly improved imaging sensitivity as established in MRFM experiments to date.
Supervisor: Oosterkamp, Tjerk
Faculty: Faculty of Science
Department: Physics (Master)
Specialisation: Quantum matter and optics
ECTS Credits: 5
Handle: http://hdl.handle.net/1887/43974
 

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