Springer Online Journal Archives 1860-2000
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Abstract The dependence of the longitudinal magnetoresistance of 〈100〉 iron whiskers upon the measuring current is investigated at 4.2 K in magnetic fields up to 20 kA/m. The carbon-saturated single crystal whiskers are 30 to 150 μm in diameter with a residual resistance ratio (RRR) of about 300. The shape of the resulting magnetoresistance curves exhibits a strong dependence on the actual measuring current. Previously existing hysteresis effects and resistivity jumps disappear with increasing current in the range from 0 to 1 A.
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