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M(H) dependence and size distribution of SPIONs measured by atomic magnetometry

Colombo, Simone ; Lebedev, Victor ; Grujic, Zoran Dragan ; Dolgovskiy, Vladimir ; Weis, Antoine

In: International Journal on Magnetic Particle Imaging, 2016, vol. 2, no. 1, p. -

We demonstrate that the quasistatic recording of the magnetic excitation function M(H) of superparamagnetic iron oxide magnetic nanoparticle (SPION) suspensions by an atomic magnetometer allows a precision determination of the sample’s iron mass contentmFe and the particle size distribution.

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MPS and ACS with an atomic magnetometer

Colombo, Simone ; Lebedev, Victor ; Grujic, Zoran Dragan ; Dolgovskiy, Vladimir ; Weis, Antoine

In: International Journal on Magnetic Particle Imaging, 2016, vol. 2, no. 1, p. -

We show that a single atomic magnetometer in a magnetically unshielded environment can be used to perform magnetic particle spectroscopy (MPS) and AC susceptometry (ACS) on liquid-suspended magnetic nanoparticles. We demonstrate methods allowing a simultaneous recording of M(H) and dM/dH(H) dependences of samples containing down to 1 μg of iron. Our results pave the way towards an atomic...

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M(H) dependence and size distribution of SPIONs measured by atomic magnetometry

Colombo, Simone ; Lebedev, Victor ; Grujic, Zoran Dragan ; Dolgovskiy, Vladimir ; Weis, Antoine

In: International Journal on Magnetic Particle Imaging, 2016, vol. 2, no. 1, p. -

MPS and ACS with an atomic magnetometer

Colombo, Simone ; Lebedev, Victor ; Grujic, Zoran Dragan ; Dolgovskiy, Vladimir ; Weis, Antoine

In: International Journal on Magnetic Particle Imaging, 2016, vol. 2, no. 1, p. -