Enhanced Interface-Driven Perpendicular Magnetic Anisotropy by Symmetry Control in Oxide Superlattices
نویسندگان
چکیده
Perpendicular magnetic anisotropy (PMA) has recently been shown to emerge at interfaces of 3d and 5d transition-metal oxides (TMOs). However, strategies systematically stabilize such interface-driven PMA still remains elusive, hindering further applications this design approach. Here, tuning crystal symmetry is be an effective means engineer interfacial phenomenon. The evolution strength as a function ferromagnetic oxide thickness quantitatively reveals the competition between volume- interface-specific contributions that determine anisotropy. By applying different degrees epitaxial strain, relative are modulated, clearly revealing their correlations with symmetries. To more specific, volume energy found correlated tetragonal distortion layer, while interface mainly modulated by octahedral tilting interface. With these insights, superlattices enhanced higher Curie temperature realized. These findings reveal route engineering associated phenomena in TMO heterostructures for future spintronic applications.
منابع مشابه
Enhanced orbital magnetic moments in magnetic heterostructures with interface perpendicular magnetic anisotropy
We have studied the magnetic layer thickness dependence of the orbital magnetic moment in magnetic heterostructures to identify contributions from interfaces. Three different heterostructures, Ta/CoFeB/MgO, Pt/Co/AlOx and Pt/Co/Pt, which possess significant interface contribution to the perpendicular magnetic anisotropy, are studied as model systems. X-ray magnetic circular dichroism spectrosco...
متن کاملInterfacial anisotropy in magnetic superlattices.
We have observed large discrepancies between the dc magnetization and ferromagnetic resonance (FMR) magnetic anisotropy in Mo-Ni superlattices. We show that higher-order anisotropy is present in both measurements and develop an analysis by which the first-order and second-order energies can be treated independently. The low-temperature results show a systematic divergence of the first-order FMR...
متن کاملPerpendicular Magnetic Anisotropy in Ion Beam
Co/Ni multilayers display perpendicular magnetic anisotropy and have applications in magnetic devices that could lead to a large increase in the density of magnetic storage. Co/Ni 10-(2 A Co/ 8A Ni) and 10-(2 A Co/ 4A Ni) multilayers were deposited with ion beam sputtering on either ion beam sputtered copper or direct current magnetron sputtered gold buffer layers of various thicknesses. The ef...
متن کاملControl of magnetic anisotropy and magnetic patterning of perpendicular Co/Pt multilayers by laser irradiation
We report an approach to altering the magnetic properties of 111 textured Co/Pt multilayer films grown on sapphire 0001 substrates in a controlled way using single-pulse laser irradiation. The as-grown films reveal a strong perpendicular magnetic anisotropy induced by interfacial anisotropy. We show that laser irradiation can chemically mix the multilayer structure particularly at the interface...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review applied
سال: 2021
ISSN: ['2331-7043', '2331-7019']
DOI: https://doi.org/10.1103/physrevapplied.15.024001