Direct imaging of nanoscale field-driven domain wall oscillations in Landau structures

• Published in: Nanoscale Vol. 14; no. 37; pp. 13667 - 13678
• Main Authors: Singh, Balram, Ravishankar, Rachappa, Otálora, Jorge A, Soldatov, Ivan, Schäfer, Rudolf, Karnaushenko, Daniil, Neu, Volker, Schmidt, Oliver G
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 29.09.2022
• Subjects: Anisotropy; Domain walls; Field strength; Giant magnetoimpedance; Harmonic oscillators; Imaging; Magnetic fields; Magnetic force microscopy; Magnetic structure; Magnetoresistivity; Microscopy; Oscillations; Spatial resolution; Thickness

Linear oscillatory motion of domain walls (DWs) in the kHz and MHz regime is crucial when realizing precise magnetic field sensors such as giant magnetoimpedance devices. Numerous magnetically active defects lead to pinning of the DWs during their motion, affecting the overall behavior. Thus, the di...