Chirp Spectroscopy Applied to the Characterization of Ferromagnetic Resonance in Magnetic Tunnel Junctions

被引：0

作者：

Ricci, Marco ^{[1
]}

Burrascano, Pietro ^{[1
]}

Carpentieri, Mario ^{[2
]}

Tomasello, Riccardo ^{[3
]}

Finocchio, Giovanni ^{[4
]}

机构：

[1] Univ Perugia, Dept Engn, Polo Sci Didatt Terni, I-50100 Terni, Italy

[2] Politecn Bari, Dept Elect & Informat Engn, I-70125 Bari, Italy

[3] Univ Calabria, Dept Comp Sci Modelling Elect & Syst Sci, I-87036 Arcavacata Di Rende, Italy

[4] Univ Messina, Dept Elect Engn Ind Chem & Engn, I-98166 Messina, Italy

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 11期

关键词：

Chirp signal; ferromagnetic resonance (FMR); magnetic tunnel junction (MTJ); spin Hall Effect (SHE);

D O I：

10.1109/TMAG.2014.2323269

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Magnetic tunnel junction (MTJ) devices find use in several applications based on the exploitation of the spin-transfer torque phenomenon. The ferromagnetic resonance (FMR) curve is a key characteristic of any MTJ. It is usually characterized both experimentally and numerically by performing a lot of measurements of the magnetic response to a sinusoidal field or current. Here, we propose the use of a chirp signal as excitation signal to reconstruct the FMR curve with a single measurement/simulation. A micromagnetic comparison of the proposed method with the traditional one is shown.

引用

页数：5

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