The phrase "alternating field" is correct and usable in written English.
It can be used in contexts related to physics, engineering, or electromagnetic fields, typically referring to a field that changes direction or magnitude over time.
Example: "The experiment demonstrated the effects of an alternating field on the behavior of charged particles."
Alternatives: "varying field" or "oscillating field".
As an alternative to heating, materials can be demagnetized by applying an alternating field (AF).
a e, Specimens were treated by alternating field demagnetization.
As the alternating field changes, water molecules attempt to align themselves with the field.
In that case, the alternating field causes the water molecules to rotate ever faster and eventually rip apart.
Van Waeyenberge, B. et al. Magnetic vortex core reversal by excitation with short bursts of an alternating field.
Since these losses rise with the frequency of the alternating field, such substances are of much importance in the electronics industry.
Stepwise alternating-field (AF) demagnetization showed univectorial behavior in general except for a soft secondary component that was removed at AF of 10 mT or less.
Fig. 2. Examples of stepwise alternating-field (AF) and thermal (TH) demagnetization data, which were selected from the sections accepted as reliable.
Typical results from the orthogonal vector diagrams for data obtained during progressive thermal demagnetizations (THD) and alternating-field demagnetizations (AFD) for samples from Core M. a, c Samples from the post-reversal zone.
A cryogenic magnetometer system with an in-line alternating-field (AF) demagnetizer (2G Enterprises model 760) and a thermal demagnetizer (Magnetic Measurement MMTD-18), both of which are located in a magnetically shielded room of the Geological Survey of Japan, AIST, were used for the paleomagnetic measurements.
Six to ten 2.5-cm cylindrical specimens of each sample were alternating-field (AF) demagnetized in 12 steps to 90 mT using a Molspin AF demagnetizer (ASC Scientific, Carlsbad, CA, USA).
