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Magnetism in dodecanethiol-capped gold nanoparticles: Role of size and capping agent
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View: Figures


Image of FIG. 1.
FIG. 1.

TEM micrographs and particle size distribution histograms for samples S1 [(a) and (b)] and S2 [(c) and (d)]. The size of approximately 600 particles from S1 and S2 were determined using IMAGEJ software to create histograms. The solid lines are fits to log-normal distributions.

Image of FIG. 2.
FIG. 2.

(Color online) Magnetic susceptibility vs at for the ZFC and FC modes for S1. The inset shows representation of Au–SH bond to DT.

Image of FIG. 3.
FIG. 3.

Susceptibility vs. at for S2. The inset shows the vs at 5 and for sample S2.

Image of FIG. 4.
FIG. 4.

vs for sample S1 at 5 and . The insets show vs plots before (a) and after (b) subtracting the high field diamagnetic contribution.

Image of FIG. 5.
FIG. 5.

Temperature dependence of the coercivity and exchange bias for sample S1 cooled in 20 kOe.

Image of FIG. 6.
FIG. 6.

Temperature dependence of the EMR resonance field , linewidth , demagnetizing field , and intensity for sample S1. The inset shows the derivative EMR spectra for few selected temperatures.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetism in dodecanethiol-capped gold nanoparticles: Role of size and capping agent