Perpendicular magnetic anisotropy in multilayers arising from the interplay of thermal strains and diffusion-driven plastic deformation

Hromov, Anton (avtor), Panjan, Matjaž (avtor), Tadić, Marin (avtor), Zorko, Andrej (avtor), Pregelj, Matej (avtor)

Magnetic films with perpendicular magnetic anisotropy (PMA) are the basis for efficient memory-storage and future spintronic devices. PMA predominantly stems from surface effects, e.g., symmetry reduction, at the magnetic-layer interface and quickly decays with increasing layer thickness. Strong PMA is thus typically observed in sub-nanometer multilayers with alternating magnetic and noble metals. Using in-situ temperature-dependent measurements of ferromagnetic resonance it is demonstrated that strong PMA can be achieved in Si/Ni multilayers with individual layer as thick as 16 nm. Here, PMA is imposed by thermal strains acting via magnetoelastic coupling and directly depends on the annealing temperature and time, which regulate the diffusion-driven plastic deformation. This opens a way to PMA-film fabrication that avoids complex and resource-intensive production of atomically thin multilayers.

• Jezik: Angleški jezik
• Ključne besede: perpendicular magnetic anisotropy, magnetic multilayers, thermal expansion, interdiffusion, plastic deformation, annealing
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: 6 str.
• Številčenje: Vol. 279, art. 120320
• PID: 20.500.12556/RUL-160685
• UDK: 53
• ISSN pri članku: 1873-2453
• DOI: 10.1016/j.actamat.2024.120320
• COBISS.SI-ID: 205411843
• Datum objave v RUL: 03.09.2024

Gradivo je del revije

• Naslov: Acta materialia
• Založnik: Elsevier, Acta Materialia Inc.
• ISSN: 1873-2453
• COBISS.SI-ID: 23343365

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: magnetne plasti, anizotropija