What is the Gouy method for the determination of magnetic susceptibility?
The GOUY Method The determination of a magnetic susceptibility depends on the measurement of B/H. Experimentally the Gouy method involves measuring the force on the sample by a magnetic field and is dependent on the tendency of a sample to concentrate a magnetic field within itself.
What does a Gouy balance measure?
A method of measuring magnetic susceptibility. The sample is suspended from a balance, with the bottom part of the sample between the poles of an electromagnet. When the magnetic field is switched on, the sample experiences a field gradient which causes an apparent change in weight.
How does a magnetic susceptibility balance work?
Both the Magnetic Susceptibility Balance MK1 and the Magnetic Susceptibility Balance AUTO work on the basis of a stationary sample and moving magnets. Two pairs of magnets are placed at opposite ends of a beam making a balanced system having a magnetic field at each end.
How is magnetic susceptibility determined?
The magnetic susceptibility of a material, commonly symbolized by χm, is equal to the ratio of the magnetization M within the material to the applied magnetic field strength H, or χm = M/H.
What do you mean by magnetic susceptibility?
Magnetic susceptibility is the degree to which a material can be magnetized in an external magnetic field. If the ratio between the induced magnetization and the inducing field is expressed per unit volume, volume susceptibility (k) is defined as.
What is magnetic susceptibility how does it vary with temperature?
Paramagnetic susceptibility is inversely proportional to the value of the absolute temperature. Temperature increases cause greater thermal vibration of atoms, which interferes with alignment of magnetic dipoles.
How do you read magnetic susceptibility?
If χ is positive, a material can be paramagnetic. In this case, the magnetic field in the material is strengthened by the induced magnetization. Alternatively, if χ is negative, the material is diamagnetic. In this case, the magnetic field in the material is weakened by the induced magnetization.
What is the symbol of magnetic susceptibility?
χm
The magnetic susceptibility of a material, commonly symbolized by χm, is equal to the ratio of the magnetization M within the material to the applied magnetic field strength H, or χm = M/H.