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Magnetic moment investigation by frequency mixing techniques
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) The applied field consists of two frequency components and , as shown in (a) and (d). Due to the nonlinear magnetization curve of the magnetic sample, (b), the resulting time dependent magnetization (c) shows the frequency mixing components in the frequency spectrum (e).

Image of FIG. 2.
FIG. 2.

(a) Sensor electronic setup with its main components. The arrows indicates the flow direction of the signals in the circuit. (b) Technical sketch of the coil arrangement.

Image of FIG. 3.
FIG. 3.

Magnetic properties of multilayer samples used to investigate the sensor performance. As magnetic phase has been used. (a) The magnetization curve measured using a vibrating sample magnetometer for one layer sample. (b) The dependence of the saturation magnetic moment on the number of magnetic layers is linear, whereas the saturation field remains unchanged.

Image of FIG. 4.
FIG. 4.

(a) Acquired spectra in contact mode (at distance) for a sample with layers. (b) Dependence of the first four harmonics in the FFT spectra on distance. The ratio (calculated from Eq. (1)) remains unchanged with distance.

Image of FIG. 5.
FIG. 5.

Dependence of the amplitude on the number of layers of magnetic material (in semilog scales). The error bars denote the standard deviation of repeated independent measurements. The solid line is a logarithmic fit of the data.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetic moment investigation by frequency mixing techniques