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Karthikk Kumaresan
I know that in a para magnetic material the magnetization increase on cooling. What will be the same effect on a diamagnetic material,considering the fact that Curies law doesn't hold good on diamagnetic materials.
Diamagnetic materials have their magnetic moment due to spin and there is no net dipole moment due to orbital motion of electrons. In any material having dipole moments due to orbital motion of its electron, many dipoles cling together in same orientation for reasons explained only by invoking quantum mechanics, they are called domains. In the absence of external magnetic field the domains of most materials(except for permanent magnet) are randomly oriented in such a way that net dipole moment at any finite volume is zero, it is only when they are exposed to external magnetic field their diploe try to align in the the direction of external magnetic field but thermal motion try to misalign them so their is a fight between external magnetic field which try to align them and thermal motion due to temperature that wants to misalign them, hence their net magnetic field or permeability is affected by temperature. Such is the case with paramagnetic materials and ferromagnetic materials in both case rise in temperature decreases their net magnetism however the inverse relationship given by curie law is valid for paramagnetic material. Diamagnetic materials got their magnetism not due to orbital motion of electrons but due to spin their magnetic moment being due to spin, so no formation of domains which could be misaligned by thermal motion so their magnetism is independent of temperature. So temperature has no effect the magnetic behaviour of diamagnetic substance.Karthikk Kumaresan said:I know that in a para magnetic material the magnetization increase on cooling. What will be the same effect on a diamagnetic material,considering the fact that Curies law doesn't hold good on diamagnetic materials.
A diamagnetic material is a type of material that has a weak magnetic response when placed in an external magnetic field. This means that it does not retain any magnetic properties after the external field is removed.
A diamagnetic material's response to temperature changes is dependent on the specific material. In general, as the temperature of a diamagnetic material increases, its magnetic susceptibility decreases, meaning it becomes less responsive to an external magnetic field.
Diamagnetic materials have a weak magnetic response because their electrons are paired and cancel out each other's magnetic fields. This results in a net zero magnetic dipole moment, making them repel from an external magnetic field.
No, the magnetic properties of a diamagnetic material cannot be changed. Unlike ferromagnetic materials, which can be magnetized, diamagnetic materials do not retain any magnetism after being exposed to an external magnetic field.
Diamagnetic materials are commonly used in scientific research to study and analyze the properties of magnetic fields. They are also used in technologies such as magnetic levitation and magnetic resonance imaging (MRI).