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Three-dimensional imaging of electron spin resonance-magnetic resonance force microscopy at room temperature

Toda, Masaya ; Ono, Takahito

Journal of magnetic resonance (1997), 2021-09, Vol.330, p.107045-107045, Article 107045 [Periódico revisado por pares]

Elsevier Inc

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  • Título:
    Three-dimensional imaging of electron spin resonance-magnetic resonance force microscopy at room temperature
  • Autor: Toda, Masaya ; Ono, Takahito
  • Assuntos: 3D imaging ; Electron spin resonance ; Magnetic resonance force microscopy
  • É parte de: Journal of magnetic resonance (1997), 2021-09, Vol.330, p.107045-107045, Article 107045
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: [Display omitted] •Fourier transform 3D deconvolution of magnetic resonance force microscopy (MRFM) with a spherical magnetic particle on a Si nanowire is performed.•Simulated imaging and deconvolution processing to spin density using experimental force map data were demonstrated.•3D imaging method was processed in the wavenumber space by a Fourier transform that used a simple convolution with noise parameters in the response function.•ESR-MRFM with a Si nanowire and a spherical magnetic particle might be useful for multiple MRFM applications at room temperature. In this study, we demonstrated the three-dimensional (3D) imaging by magnetic resonance force microscopy (MRFM) based on electron spin resonance (ESR) measurements at room temperature. For a microsample containing radicals, the 3D force distribution was obtained using a custom-made Si nanowire and a permanent magnetic particle. Calculation using precise values of the magnetic field distribution is required to define an accurate response function for the 3D deconvolution processing of the spin density distribution. A symmetric resonance magnetic field produces good periodic force maps using a spherical micromagnet, which simplifies the deconvolution processing with resonant slice systems. In addition, the 3D imaging method was processed in the wavenumber space by a Fourier transform that used a simple convolution with noise parameters in the response function. After the reconstruction of the distribution of electron spins (radicals), the shape of the sample agreed with that of the optical image; thus, the accuracy of the internal density structure was verified. We believe that the combination of a Si nanowire and a spherical magnetic particle used for magnetic resonance detection is a good candidate for Fourier transform 3D deconvolution in multiple MRFM applications.
  • Editor: Elsevier Inc
  • Idioma: Inglês
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