A versatile cantilever beam magnetometer for ex situ characterization of magnetic materials.
We have designed, fabricated, and made operational an ex situ cantilever beam magnetometer (CBM), which is versatile in the sense that it can measure most of the magnetic properties of a material in all probable shapes. The working principle of a CBM is discussed considering the magnetic torque into the beam theory. The individual components of the instrument are described in details and experiments were performed on the bulk materials, pellets of nanoparticles, ribbon samples, and thin films, and the magnetization, magnetostriction, and magnetocrystalline anisotropy were studied. This magnetometer is inexpensive, but versatile and would be suitable for the research as well as teaching laboratories.
Department of Physics and Meteorology, Indian Institute of Technology, Kharagpur, India.
R
R
Adhikari
A
A
Sarkar
A K
AK
Das