BlockingTemperatur
BlockingTemperatur is a term used in magnetism to describe the temperature below which the magnetic moments of nanoscale particles become thermally blocked on the timescale of observation. Below this temperature, the moments remain fixed in a preferred orientation for practical timescales, whereas above it they can rapidly fluctuate due to thermal energy, a regime known as superparamagnetism.
The concept arises from the competition between magnetic anisotropy energy and thermal energy. For a single-domain
Experimentally, TB is commonly identified in zero-field-cooled and field-cooled magnetization measurements. The temperature at which the
In applications, TB influences data stability in magnetic recording, the behavior of magnetic nanoparticles in biomedical
See also: superparamagnetism, magnetic anisotropy, Neel relaxation.