Title :
SQUID detection of magnetic fields produced by chemical reactions
Author :
Claycomb, James ; Nersesyan, Mikael ; Luss, Dan ; Miller, John H., Jr.
Author_Institution :
Dept. of Phys., Houston Univ., TX, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
We report on the detection of chemomagnetic fields produced by solid state combustion and liquid-solid reactions. Magnetic time series and noise spectra are recorded with high-Tc SQUID magnetometers. The moving reaction zone, ion convection, ion diffusion all cause macroscopic ionic currents, which generate electric and magnetic fields. A simple electromagnetic model describes the relation between a moving charge distribution associated with the combustion wave and the resulting magnetic field. Certain reactions exhibit power law behavior in the noise spectra and probability distributions of magnetic field peak amplitudes, consistent with self-organized criticality
Keywords :
SQUID magnetometers; chemical reactions; combustion; high-temperature superconductors; self-organised criticality; superconducting device noise; time series; SQUID magnetometer; chemical reaction; chemomagnetic field; combustion wave; electromagnetic model; high-Tc superconductor; ion convection; ion diffusion; ionic current; liquid-solid reaction; magnetic field detection; moving charge distribution; moving reaction zone; noise spectra; power law; probability distribution; self-organized criticality; solid-state combustion; time series; Chemicals; Combustion; Magnetic field measurement; Magnetic fields; Magnetic liquids; Magnetic noise; Pollution measurement; SQUIDs; Solid state circuits; Temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
