Journal
APPLIED PHYSICS EXPRESS
Volume 11, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.7567/APEX.11.023001
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Funding
- S-Innovation program, Japan Science and Technology Agency (JST)
- Center for Spintronics Research Network, Tohoku University
- Grants-in-Aid for Scientific Research [16H05435] Funding Source: KAKEN
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Magnetocardiography (MCG) and magnetoencephalography (MEG) signals were detected at room temperature using tunnel magneto-resistance (TMR) sensors. TMR sensors developed with low-noise amplifier circuits detected the MCG R wave without averaging, and the QRS complex was clearly observed with averaging at a high signal-to-noise ratio. Spatial mapping of the MCG was also achieved. Averaging of MEG signals triggered by electroencephalography (EEG) clearly observed the phase inversion of the alpha rhythm with a correlation coefficient as high as 0.7 between EEG and MEG. (C) 2018 The Japan Society of Applied Physics
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