2020
DOI: 10.1016/j.jmmm.2020.167299
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Magnetic force microscopy characterization of core–shell cobalt-oxide/hydroxide nanoparticles

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Cited by 5 publications
(4 citation statements)
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“…For these films, the resistivity varies from ρ = 98 µΩ cm (thickness d = 10 nm) up to ρ = 43.14 µΩ cm for d = 100 nm thin film, having 1/d dependence [57]. These values are higher than the bulk resistivity for bulk Co (ρ = 5.88 µΩ cm) or Ni (ρ = 7.14 µΩ cm) [47].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…For these films, the resistivity varies from ρ = 98 µΩ cm (thickness d = 10 nm) up to ρ = 43.14 µΩ cm for d = 100 nm thin film, having 1/d dependence [57]. These values are higher than the bulk resistivity for bulk Co (ρ = 5.88 µΩ cm) or Ni (ρ = 7.14 µΩ cm) [47].…”
Section: Discussionmentioning
confidence: 99%
“…In this study, we used CoCr cantilevers with a radius of less than 40 nm and a scan rate of 1 Hz. In standard Magnetic Force Microscopy measurements, the phase shift ∆ϕ of the oscillating cantilever is recorded at a fixed lift height ∆z [47].…”
Section: Atomic and Magnetic Force Microscopymentioning
confidence: 99%
“…Previous studies revealed that the optimum height for the used cantilevers and Pd-Fe NPs, at which van der Waals forces could be neglected but magnetic interaction is still strong, was between 20 and 30 nm of lift height [20]. The magnetic signal was measured via phase shift of the cantilever oscillations, which is proportional to the gradient of force between the probe and the sample [22][23][24][25]. The NPs were magnetized by a magnet set below the slices of the strength of 0.58 T.…”
Section: Magnetic Force Microscopy (Mfm)mentioning
confidence: 99%
“…Such magnetic measurements performed on dried powders or colloidal suspensions are necessary for optimizing the chemical synthesis, as well as for concluding about the magnetic state. MFM on the other hand is a technique able to image individual clusters and to address their magnetization states at the nanometer scale. This technique has been used for revealing magnetic properties of individual NPs and of magnetically correlated grain systems . Nevertheless, MFM has also the potential to qualitatively investigate the magnetization state of clusters made of several NPs, in addition to their morphology, size characteristics, and separation. , Moreover, in some cases, the magnetic interaction forces measured by the microscope can also be used for quantitative magnetization studies under magnetic fields. , …”
Section: Introductionmentioning
confidence: 99%