Magnetic NiFe thin films composing MoS2 nanostructures for spintronic application

Abstract

We demonstrate a nanostructure layer made of Ni80Fe20 (permalloy:Py) thin film conjugated MoS2 nano-flakes. Layers are made based on a single-step co-deposition of Py and MoS2 from a single solution where ionic Ni and Fe and MoS2 flakes co-exist. Synthesized thin films with MoS2 flakes show increasing coercivity and enhancement in magneto-optical Kerr effect. Ferromagnetic resonance linewidth as well as the damping parameter increaseed significantly compared to that of the Py layer due to the presence of MoS2. Raman spectroscopy and elemental mapping is used to show the quality of MoS2 within the Py thin film. Our synthesis method promises new opportunities for electrochemical production of functional spintronic-based devices.

Static and dynamic magnetic properties of circular and square cobalt nanodots in hexagonal cells

“…Low-dimensional magnetic nanostructures, called nanodots, have been increasingly studied due to their promising performance in spintronics 1–3 and microwave devices. 4–6 On one hand, it is well known that by arranging magnetic nanostructures in fixed positions in a two-dimensional array, both the magnetization and reversal processes are significantly affected by the separation distance between the nanostructures.…”

Spintronic filter via p-typed polaron state in photoelectron conversion integrating devices

“…Ferromagnetic resonance helps effectively achieve the magneto-optical Kerr effect to achieve spintronics from ferromagnetic materials. 16,17 However, most semiconductors with high-energy conversion performance are weakly ferromagnetic.…”

“…The use of optical ways, such as polarizer and quarter-wave plates, to modulate the angular momentum of light to flip excited electrons into single-spin spintronic makes our research different from the magneto-optical Kerr effect to generate spintronic from ferromagnetic materials. 16,17 In addition, such intrinsic defects are created as small polaron surface states, which are not only utilized to achieve spin–orbital coupling effects for spintronic excitation but also to increase the charge mobility via iterative redox reactions of Cu ions and O vacancies. A strong polarization rate (35%) was achieved from the ultra-thin external layers of CuO on Cu 2 O nanocubes such weak light power excitation (low power laser); our devices also exhibit excellent water-splitting performance, charge mobility (1.08 × 10 15 m 2 V −1 s −1 ), and hydrogen evolution (1.58 L of hydrogen gas was generated in one per meter square).…”