Helium-free cryogenic magnetometer equipped with high resolution pick-up coils, specifically designed for measurements of various remanent magnetizations and for acquisition of anhysteretic remanent magnetization on u-channel type samples
Instrument description:
Helium-free cryogenic magnetometer dedicated to the high resolution (4.5 cm) measurement of remanent magnetizations (Natural Remanent Magnetization (NRM), Anhysteretic Remanent Magnetization (ARM), Isothermal Remanent Magnetization (IRM)) on continuous series (maximum square section of 22 mm, maximum length of 1.5 m). Three alternating field (AF) coils are installed in line for stepwise demagnetization, as well as one solenoid for ARM acquisition. The system is placed in the µmetal shielded room.
Principle of the analysis:
The remanent magnetization is measured along the 3 axes X, Y, Z with high resolution pick-up coils. The magnetizations can be demagnetized along the three axes by alternating field up to 100 mT. Stepwise acquisition of ARM can also be performed as well as its stepwise AF demagnetization. The entire procedure is controlled using a dedicated software.
Analyses performed with the instrument:
-
Measurement of all remanent magnetizations (NRM, ARM, IRM) on continuous series
-
Stepwise AF demagnetization.
-
Acquisition of the anhysteretic remanent magnetization (ARM)
Contact:
Catherine Kissel : This email address is being protected from spambots. You need JavaScript enabled to view it.