Low-Power Photo-Induced Precession of Magnetization in Ultra-Thin Co/Pd Multilayer Films

DOI PDF 7 Citations 14 References

Search this article

Description

Photo-induced precession of magnetization (PIPM) has been studied in ultra-thin [Co/Pd]5 multilayered structures at the region of pump fluences F = 0.11 to 11 μJ/cm2. In a series of samples with tpd = 1.62 nm, precession amplitude has increased at tCo = 0.86 nm, around which magnetic anisotropy changes between in-plane (tCo > 0.86 nm) and out-of-plane (tCo ≤ 0.86 nm). When tPd was reduced in half (tpd = 0.81 nm) the amplitude of PIPM has increased significantly, which leads us to the observation of PIPM at F = 0.25 μJ/cm2, the regime of low energy excitation. A model which connects precession amplitude and parameters associated with spin dynamics has been developed, through which efficiency of energy transfer between electron and spin subsystems has been examined quantitatively.

Journal

Citations (7)*help

See more

References(14)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top