Armenian Journal of Physics

Investigation of Detection of Microwave Radiation in Ferromagnetic YIG

Julfayan, H. G. and Makaryan, A.H. and Tadevosyan, V.R. (2017) Investigation of Detection of Microwave Radiation in Ferromagnetic YIG. Armenian Journal of Physics, 10 (1). pp. 9-13. ISSN 1829-1171

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The detection of amplitude-modulated microwave radiation (1.07-2.14 GHz) in the ferromagnetic yttrium iron garnet (YIG) at room temperature was experimentally obtained. The detected signal (the change of magnetic moment of YIG sample under the influence of microwave magnetic field) was recorded by the magnetic sensor representing a horseshoe-shaped ferrite with an inductor. It is shown that the magnitude and sign of the detected signal depend essentially on the slope of the magnetization curve (on the differential magnetic permeability) and on the bias magneticfield (on the bias current of the magnetizing coil). The dependence of the magnetic permeability andthe detected signal on the bias current shows that they have hysteretic behavior. The dependence ofdetected signal on applied magnetic field (bias current) is in good agreement with static curve of differential magnetic permeability of the ferromagnetic sample.

Item Type:Article
Subjects:Physics > 41.Electromagnetism; electron and ion optics
Physics > 85.Electronic and magnetic devices; microelectronics
ID Code:873
Deposited By:Prof. Vladimir Aroutiounian
Deposited On:19 Apr 2017 07:37
Last Modified:19 Apr 2017 07:37

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