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Scanning Magnetic Microscopy Using a High-Sensitivity Room-Temperature Tunnel Magnetoresistance Sensor for Geological

Hirokuni Oda1, Kosuke Fujiwara2, Naoto Fukuyo1,3

  • 1Research Institute of Geology and Geoinformation, Geological Survey of Japan (GSJ), National Institute of Advanced Industrial Science and Technology (AIST), Central 7, 1-1-1 Higashi, Tsukuba 305-8567, Ibaraki, Japan.

Sensors (Basel, Switzerland)
|February 13, 2026
PubMed
Abstract

Keywords:
calibrationfrequency responsegeological thin sectionmagnetic point sourcescanning magnetic microscopysensor characteristicssuperconducting quantum interference device (SQUID)tunnel magnetoresistance (TMR) sensor

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