superparamagnetism
/ˌsuːpəparəˈmaɡnɪtɪz(ə)m/ /ˌsjuːpəparəˈmaɡnɪtɪz(ə)m/Physics
noun
A phenomenon in which particles under a certain critical size and having a single magnetic domain can exhibit behaviour similar to paramagnetism despite being below the Curie temperature (for a ferromagnetic substance) or the Néel temperature (for an antiferromagnetic or ferrimagnetic substance).
- The phenomenon arises when the energy required to change the direction of a particle's magnetic moment is comparable to its thermal energy..
Origin
1950s. From super- + paramagnetism, after superparamagnetic.
- promissorily
- promissory
- promissory note
- promissory oath
- promitochondrion
- promittor
- promizole
- prom king
- prommer
- promnesia
- promo
- promo man
- promonocyte
- promontorial
- promontoried
- promontorium
- promontory
- Promontory Mountains
- promorph
- promorphological
- promorphology
- promotability
- promotable
- promote
- promotee