Amorphous microwires with enhanced magnetic softness and GMI characteristics

GMI Effect of Ultra-Soft Magnetic Soft Amorphous Microwires

In this paper we experimentally studied GMI effect and soft magnetic behavior of Co-rich microwires. Correlation between magnetoelastic anisotropy and magnetic field dependences of diagonal and off-diagonal impedance components are observed. Low field GMI hysteresis, explained in terms of magnetoelastic anisotropy of microwires, has been suppressed by the bias current.

Domain Wall Propagation in Bistable Amorphous Microwires

Tendency on miniaturization of the modern magnetic sensors and devices stimulates development of such magnetic materials with reduced dimensionality. Therefore magnetic materials with outstanding magnetic characteristics and reduced dimensionality recently gained much attention. Consequently thin wire with reduced geometrical dimensions (of order of 1-30 μm in diameter) gained importance within...

Development of Ultra-Thin Glass-Coated Amorphous Microwires for High Frequency Magnetic Sensors Applications

The giant magneto-impedance (GMI) effect has been studied in 3 different families of amorphous wires: conventional amorphous wires (125 μm in diameter), cold drawn wires (50 and 20 μm in diameter) and thin glass coated amorphous microwires (with metallic nucleus diameter of about 15 μm). These wires have been investigated in the frequency range 1 – 500 MHz. A remarkable difference in the magnet...

Tuneable Composites Containing Magnetic Microwires

Magnetization Reversal in System of Two Co-rich Amorphous Microwires

The present work reports on the investigations of the magnetization reversal of the system of two glass covered amorphous microwires with circular magnetic bistability. The experiments have been carried out using the transverse magneto-optical Kerr effect in circular and axial magnetic field. The electric current flowing through two wires in opposite directions produced the circular magnetic fi...