Editing Remanence (section)

=== Anhysteretic remanence ===
Another kind of laboratory remanence is ''anhysteretic remanence'' or ''anhysteretic remanent magnetization (ARM)''. This is induced by exposing a magnet to a large alternating field plus a small [[DC bias]] field. The amplitude of the alternating field is gradually reduced to zero to get an ''anhysteretic magnetization'', and then the bias field is removed to get the remanence. The anhysteretic magnetization curve is often close to an average of the two branches of the [[hysteresis loop]],<ref name=Bozorth>{{Harvnb|Bozorth|1993}}</ref> and is assumed in some models to represent the lowest-energy state for a given field.<ref>{{Harvnb|Jiles|Atherton|1986}}</ref> There are several ways for experimental measurement of the anhysteretic magnetization curve, based on fluxmeters and DC biased demagnetization.<ref>{{Harvnb|Nowicki|2018}}</ref> ARM has also been studied because of its similarity to the write process in some magnetic recording technology<ref>{{Harvnb|Jaep|1969}}</ref> and to the acquisition of [[natural remanent magnetization]] in rocks.<ref>{{Harvnb|Banerjee|Mellema|1974}}</ref>