The Magnetic Resonance Force Microscope

Hammel, P. Chris; Pelekhov, Denis V.

doi:10.1002/9780470022184.hmm522

Cited by 8 publications

(4 citation statements)

References 63 publications

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“…In this review we discuss the improvements made to the MRFM technique over the last four years, and present an outlook of possible future developments. Section 2 introduces the basics of MRFM and provides a brief historical overview covering earlier work until about 2006 (for a broader discussion of this work the reader is referred to several reviews, for example [21][22][23][24][25][26][27]). Section 3 primarily focuses on work done by the authors and collaborators while in the MRFM group at the IBM Almaden Research Center.…”

Section: Introductionmentioning

confidence: 99%

Force-detected nuclear magnetic resonance: recent advances and future challenges

2010

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We review recent efforts to detect small numbers of nuclear spins using magnetic resonance force microscopy. Magnetic resonance force microscopy (MRFM) is a scanning probe technique that relies on the mechanical measurement of the weak magnetic force between a microscopic magnet and the magnetic moments in a sample. Spurred by the recent progress in fabricating ultrasensitive force detectors, MRFM has rapidly improved its capability over the last decade. Today it boasts a spin sensitivity that surpasses conventional, inductive nuclear magnetic resonance detectors by about eight orders of magnitude. In this review we touch on the origins of this technique and focus on its recent application to nanoscale nuclear spin ensembles, in particular on the imaging of nanoscale objects with a three-dimensional (3D) spatial resolution better than 10 nm. We consider the experimental advances driving this work and highlight the underlying physical principles and limitations of the method. Finally, we discuss the challenges that must be met in order to advance the technique towards single nuclear spin sensitivity-and perhaps-to 3D microscopy of molecules with atomic resolution.

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Section: Introductionmentioning

confidence: 99%

Force-detected nuclear magnetic resonance: recent advances and future challenges

2010

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“…Magnetic resonance force microscopy (MRFM) is a powerful technique for visualizing subsurface structures 1,2,3,4,5 with three dimensional spatial resolution of the order of 10 nanometers or less 6 , which is more than two orders of magnitude better than the resolution of conventional high-field magnetic resonance imaging (MRI). The main part of a MRFM device is a nanomechanical resonator or cantilever (see Fig.…”

Section: Introductionmentioning

confidence: 99%

Cooling a magnetic resonance force microscope via the dynamical back action of nuclear spins

2009

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We analyze the back-action influence of nuclear spins on the motion of the cantilever of a magnetic force resonance microscope. We calculate the contribution of nuclear spins to the damping and frequency shift of the cantilever. We show that, at the Rabi frequency, the energy exchange between the cantilever and the spin system cools or heats the cantilever depending on the sign of the highfrequency detuning. We also show that the spin noise leads to a significant damping of the cantilever motion.

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“…Here we report a spatially resolved study of the magnetic properties of (Ga,Mn)As thin film with a lateral resolution of ∼ 1 µm using both Ferromagnetic Resonance Force Microscopy (FMRFM) 5,6 and probe-induced Magnetic Force Microscopy (MFM) 7 . Ferromagnetic Resonance (FMR) measures the dynamical response of ferromagnetic magnetization allowing one to measure magnetic properties with spectroscopic precision; this makes it a powerful and widely used tool for measuring magnetic properties of ferromagnetic films and structures [8][9][10][11][12] .…”

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confidence: 99%

Local magnetic characterization of (Ga,Mn)As continuous thin film using scanning probe force microscopy

et al. 2012

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We report spatially resolved measurements of the saturation magnetization, anisotropy field, and g-factor of a (Ga,Mn)As thin film using two different scanning probe techniques: Ferromagnetic Resonance Force Microscopy (FMRFM) and probe-induced Magnetic Force Microscopy (MFM). We find that the magnetic properties of the film are uniform within our 1 µm lateral resolution. We further demonstrate that these two powerful and complementary magnetic characterization approaches, the former dynamic and the latter static, obtain measurements of magnetic properties that are in excellent agreement with one another enabling enhanced quantitative reliability.

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The Magnetic Resonance Force Microscope

Cited by 8 publications

References 63 publications

Force-detected nuclear magnetic resonance: recent advances and future challenges

Force-detected nuclear magnetic resonance: recent advances and future challenges

Cooling a magnetic resonance force microscope via the dynamical back action of nuclear spins

Local magnetic characterization of (Ga,Mn)As continuous thin film using scanning probe force microscopy

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