Impact of a rubrene buffer layer on the dynamic magnetic behavior of nickel layers on Si(100)

Ranganadha Gopalarao Tanguturi, Jian Chen Tsai, You Siang Li, Jyh Shen Tsay*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

Interfaces of ferromagnetic/organic material hybrid structures refer to the spin interface that governs physical properties for achieving high spin polarization, low impedance mismatch, and long spin relaxation. Spintronics can add new functionalities to electronic devices by taking advantage of the spin degree of freedom of electrons, which makes understanding the dynamic magnetic properties of magnetic films important for spintronic device applications. Our knowledge regarding the magnetic dynamics and magnetic anisotropy of combining ferromagnetic layer and organic semiconductor by microwave-dependent magnetic measurements remains limited. Herein, we report the impact of an organic layer on the dynamic magnetic behavior of nickel/rubrene bilayers deposited on a Si(100) substrate. From magnetic dynamic measurements, opposite signs of effective magnetic fields between the in-plane (IP) and out-of-plane (OP) configurations suggest that the magnetization of Ni(x)/rubrene/Si prefers to coexist. A shift in OP resonance fields to higher values can mainly be attributed to the enhanced second-order anisotropy parameter K2 value. Based on IP measurements, a two-magnon scattering mechanism is dominant for thin Ni(x)/rubrene/Si bilayers. By adding a rubrene layer, the highly stable IP combined with the tunable OP ferromagnetic resonance spectra for Ni(x)/rubrene/Si bilayers make them promising materials for use in microwave magnetic devices and spintronics with controllable perpendicular magnetic anisotropy.

原文英語
頁(從 - 到)32029-32039
頁數11
期刊Physical Chemistry Chemical Physics
25
發行號46
DOIs
出版狀態已發佈 - 2023 11月 3

ASJC Scopus subject areas

  • 一般物理與天文學
  • 物理與理論化學

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