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- W4237250377 abstract "We show that thin mesoscopic read-head sensors with a vertical resolution of are advantageous for detecting magnetic fields from high-density recording media and compare such sensors constructed from narrow-gap semiconductors using the Hall bar and Corbino (giant magnetoresistance) geometries. For signal fields below a critical crossover field , the Hall bar yields a larger output voltage. The maximum output voltage for a thin Hall bar detector is proportional to the maximum drift velocity of the sensor material and to its width. The maximum output voltage and power signal-to-noise ratios are calculated for thin Hall bar read-head sensors constructed from a number of polar semiconductor materials. Read heads of this type are shown to be competitive with metallic spin valve magnetoresistive read heads. We propose a simple, commercially practical procedure for the fabrication of thin Hall bar read-head sensors with high sensitivity and high spatial resolution." @default.
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- W4237250377 date "1997-10-01" @default.
- W4237250377 modified "2023-10-14" @default.
- W4237250377 title "Thin, horizontal-plane Hall sensors for read heads in magnetic recording" @default.
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- W4237250377 doi "https://doi.org/10.1088/0957-0233/8/10/021" @default.
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