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Published April 2005 | public
Journal Article

Nanomagnetic Planar Magnetic Resonance Microscopy "Lens"


The achievement of three-dimensional atomic resolution magnetic resonance microscopy remains one of the main challenges in the visualization of biological molecules. The prospects for single spin microscopy have come tantalizingly close due to the recent developments in sensitive instrumentation. Despite the single spin detection capability in systems of spatially well-isolated spins, the challenge that remains is the creation of conditions in space where only a single spin is resonant and detected in the presence of other spins in its natural dense spin environment. We present a nanomagnetic planar design where a localized Angstrom-scale point in three-dimensional space is created above the nanostructure with a nonzero minimum of the magnetic field magnitude. The design thereby represents a magnetic resonance microscopy "lens" where potentially only a single spin located in the "focus" spot of the structure is resonant. Despite the presence of other spins in the Angstrom-scale vicinity of the resonant spin, the high gradient magnetic field of the "lens" renders those spins inactive in the detection process.

Additional Information

© 2005 American Chemical Society. Received January 20, 2005; Revised Manuscript Received March 1, 2005. Publication Date (Web): March 9, 2005. This material is based upon work supported by the National Science Foundation under the NSF−CAREER Award Grant No. 0349319 and by the Caltech Grubstake Fund. The authors thank Dr. Joyce Wong and George Maltezos for helpful discussions and careful reading of the manuscript, and acknowledge initial discussions toward neutral particle trapping and quantum computation with Professor Hideo Mabuchi and Ben Lev of Caltech.

Additional details

August 19, 2023
March 5, 2024