A geometry for optimizing nanoscale magnetic resonance force microscopy

Abstract

We implement magnetic resonance force microscopy (MRFM) in an experimental geometry, where the long axis of the cantilever is normal to both the external magnetic field and the RF microwire source. Measurements are made of the statistical polarization of ${}^1$H in polystyrene with negligible magnetic dissipation, gradients greater than $10^5$ T/m within 100 nm of the magnetic tip, and rotating RF magnetic fields over 12 mT at 115 MHz. This geometry could facilitate the application of nanometer-scale MRFM to nuclear species with low gyro-magnetic ratios and samples with broadened resonances, such as In spins in quantum dots.

4 pages, 5 figures

References in corpus (5)

• Force-detected nuclear magnetic resonance: Recent advances and future challenges
• The role of spin noise in the detection of nanoscale ensembles of nuclear spins
• Nuclear magnetic resonance force microscopy with a microwire rf source
• A geometry for optimizing nanoscale magnetic resonance force microscopy
• Spatial characterization of the magnetic field profile of a probe tip used in magnetic resonance force microscopy

Cited by in corpus (7)

• Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator
• Ground-state cooling of a carbon nanomechanical resonator by spin-polarized current
• Control of vibrational states by spin-polarized transport in a carbon nanotube resonator
• Measurement of statistical nuclear spin polarization in a nanoscale GaAs sample
• A geometry for optimizing nanoscale magnetic resonance force microscopy
• Spin-mediated photomechanical coupling of a nanoelectromechanical shuttle
• Force-detected Nuclear Magnetic Resonance