Thermo-mechanical sensitivity calibration of nanotorsional magnetometers

Abstract

We report on the fabrication of sensitive nanotorsional resonators, which can be utilized as magnetometers for investigating the magnetization dynamics in small magnetic elements. The thermo-mechanical noise is calibrated with the resonator displacement in order to determine the ultimate mechanical torque sensitivity of the magnetometer.

arXiv comment56th Annual Conference on Magnetism and Magnetic Materials

References in corpus (3)

• Sideband Cooling Micromechanical Motion to the Quantum Ground State
• Nano-Torsional Resonator Torque Magnetometry
• Observation of Magnetic Supercooling of the Transition to the Vortex State

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• Design and experimental demonstration of optomechanical paddle nanocavities
• Simultaneous three-axis torque measurements of micromagnetism
• Three-axis torque investigation of interfacial exchange coupling in a NiFe/CoO bilayer micromagnetic disk