Details

Autor(en) / Beteiligte

• Persson, M
• Kulyk, M M
• Kravets, A F
• Korenivski, V

Titel

Proximity-enhanced magnetocaloric effect in ferromagnetic trilayers

Ist Teil von

• Journal of physics. Condensed matter, 2022-12, Vol.35 (7), p.075801

Ort / Verlag

England: IOP Publishing

Erscheinungsjahr

2022

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The demagnetization and associated magnetocaloric effect (MCE) in strong-weak-strong ferromagnetic trilayers, upon a reorientation of the strong ferromagnets from parallel to antiparallel (AP) magnetization, is simulated using atomistic spin dynamics. The simulations yield non-trivial spin distributions in the AP state, which in turn allows entropy to be calculated directly. The influence of longer-range spin-spin interactions and of variable strength of the external switching field are investigated. Finally, we find that the MCE in the system can be significantly improved by allowing the local exchange to vary through the spacer, which in practice can be implemented by spatially tailoring the spacer's magnetic dilution.