Which of the following statements accurately describes the effect of nanoscale size on the magnetic properties of materials?
1
Nanoscale materials generally exhibit reduced magnetism due to increased disorder.
2
The magnetic properties of nanomaterials are size-independent and only determined by composition.
3
The reduction in size to the nanoscale can cause ferromagnetic materials to become superparamagnetic.
4
Nanoscale materials do not exhibit magnetic properties due to electron confinement.