Персона: Протасов, Евгений Александрович
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Magnetometer Based on a Structure Consisting of High-Temperature Superconductor and Epitaxial Iron-Garnet Film
© 2019, Pleiades Publishing, Ltd.Abstract: A scheme for construction of a magnetometer based on periodic spatial modulation of magnetic flux density by a multielement HTS structure is proposed and physically substantiated. The magnetic flux density is measured using a planar magnetooptical device with a sensitivity of no worse than 10–12 T.
Anomalous Electrical Conductivity and Magnetization in Fe-Cr-Ni Austenite-Martensite Alloys
We have measured the temperature dependence of the resistivity and magnetization of a special steel of the Fe-Cr-Ni austenite-martensite class in a wide temperature range (77-1100 K). It is found that at temperatures 77-170 K, the resistivity of the material almost remains unchanged, but upon a further increase in temperature, the resistivity sharply increases, which is probably a result of disordering. In addition, anomalous behavior of resistivity with vanishing spontaneous magnetization is observed at 910 K, which is associated with the ferromagnet-paramagnet phase transition. Comparison of the measured (T) dependence with the analogous dependence for 12Kh18N10T austenite stainless steel has not revealed features typical of Fe-Cr-Ni steel.