Ion-induced nanoscale ripple patterns on Si surfaces: theory and experiment

A Keller, S Facsko - Materials, 2010‏ - mdpi.com
Nanopatterning of solid surfaces by low-energy ion bombardment has received
considerable interest in recent years. This interest was partially motivated by promising …

Ion beam nanopatterning of biomaterial surfaces

Y Yang, A Keller - Applied Sciences, 2021‏ - mdpi.com
Ion beam irradiation of solid surfaces may result in the self-organized formation of well-
defined topographic nanopatterns. Depending on the irradiation conditions and the material …

Introducing artificial length scales to tailor magnetic properties

J Fassbender, T Strache, MO Liedke… - New Journal of …, 2009‏ - iopscience.iop.org
Magnetism is a collective phenomenon. Hence, a local variation on the nanoscale of
material properties, which act on the magnetic properties, affects the overall magnetism in …

Crossover in the surface anisotropy contributions of ferromagnetic films on rippled Si surfaces

MO Liedke, M Körner, K Lenz, M Fritzsche… - Physical Review B …, 2013‏ - APS
We investigate the influence of a nanoscale periodic ripple morphology on the structure and
magnetocrystalline anisotropy of thin ferromagnetic (FM) Ni 81 Fe 19, Co, and Fe films. The …

Fractal characterization of the silicon surfaces produced by ion beam irradiation of varying fluences

RP Yadav, T Kumar, AK Mittal, S Dwivedi… - Applied Surface …, 2015‏ - Elsevier
Abstract Si (1 0 0) is bombarded with 200 keV Ar+ ion beam at oblique incidence with
fluences ranging from 3× 10 17 ions/cm 2 to 3× 10 18 ions/cm 2. The surface morphology of …

Observation of uniaxial magnetic anisotropy and out-of-plane coercivity in W/Co20Fe60B20/W structures with high thermal stability

L Saravanan, NK Gupta, L Pandey, IP Kokila… - Journal of Alloys and …, 2022‏ - Elsevier
In this study, the development of uniaxial magnetic anisotropy (UMA) and out-of-plane
coercivity (H c┴) in W/Co 20 Fe 60 B 20 (CoFeB)/W structures by tuning the annealing …

The morphology of amorphous SiO2 surfaces during low energy ion sputtering

A Keller, S Facsko, W Möller - Journal of Physics: Condensed …, 2009‏ - iopscience.iop.org
The morphology of different amorphous or amorphized SiO 2 surfaces, including thermally
grown films, fused silica, and single crystalline quartz, during low energy ion sputtering has …

Induced anisotropies in exchange-coupled systems on rippled substrates

MO Liedke, B Liedke, A Keller, B Hillebrands… - Physical Review B …, 2007‏ - APS
The role of monoatomic steps at the mutual interface between a ferromagnetic and an
antiferromagnetic layer in a Ni 81 Fe 19∕ Fe 50 Mn 50 exchange bias system is …

Magnetic anisotropy engineering: Single-crystalline Fe films on ion eroded ripple surfaces

MO Liedke, M Körner, K Lenz, F Grossmann… - Applied Physics …, 2012‏ - pubs.aip.org
We present a method to preselect the direction of an induced in-plane uniaxial magnetic
anisotropy (UMA) in thin single-crystalline Fe films on MgO (001). Ion beam irradiation is …

Uniaxial magnetic anisotropy of cobalt films deposited on sputtered MgO (001) substrates

K Chen, R Frömter, S Rössler, N Mikuszeit… - Physical Review B …, 2012‏ - APS
We present a systematic investigation of the in-plane uniaxial magnetic anisotropy induced
by the morphology due to ion erosion of MgO (001). Ion milling at oblique incidence forms a …