Magnetic resonance force microscopy with a permanent magnet on the cantilever

Magnetic Resonance Force Microscopy Cantilever Detection by Quantum Tunneling

Magnetic resonance force microscopy (MRFM) is a novel ultra-sensitive magnetic resonance detection scheme. In this scheme, forces are measured between a magnet-tipped cantilever and on-resonance spins. It has been proposed that this technique could be used to image biomolecules [1]. In order to increase the sensitivity of MRFM, it may become necessary to use radio-frequency (RF), rather than au...

Investigation of unbalanced magnetic force in permanent magnet brushless dc machines with diametrically asymmetric winding

The purpose of this paper is the calculation of Unbalanced Magnetic Force (UMF) in permanent magnet brushless DC (PMBLDC) machines with diametrically asymmetric winding and investigation of UMF variations in the presence of phase advance angle. This paper presents an analytical model of UMF in surface mounted PMBLDC machines that have a fractional ratio of slot number to pole number. This model...

Quantum Dynamics of the Oscillating Cantilever-Driven Adiabatic Reversals in Magnetic Resonance Force Microscopy

We simulated the quantum dynamics for magnetic resonance force microscopy (MRFM) in the oscillating cantilever-driven adiabatic reversals (OSCAR) technique. We estimated the frequency shift of the cantilever vibrations and demonstrated that this shift causes the formation of a Schrödinger cat state which has some similarities and differences from the conventional MRFM technique which uses cycli...

Magnetic resonance force microscopy with a ferromagnetic tip mounted on the force detector.

The Magnetic Resonance Force Microscope (MRFM) presents the opportunity for a magnetic resonance imaging probe with ultra-high, potentially atomic-scale, resolution. The successful application of this technique in detection of nuclear magnetic, electron-spin and ferromagnetic resonance (FMR) highlights its significant potential. We discuss the capabilities of the MRFM with particular emphasis o...

Single Spin Magnetic Resonance Force Microscopy