Electric-field tunable spin diode FMR in patterned PMN-PT/NiFe structures

被引：10
|
作者：
Zietek, Slawomir [1 ]
Ogrodnik, Piotr [1 ,2 ]
Skowronski, Witold [1 ]
Stobiecki, Feliks [3 ]
van Dijken, Sebastiaan [4 ]
Barnas, Jozef [3 ,5 ]
Stobiecki, Tomasz [1 ]
机构：
[1] AGH Univ Sci & Technol, Dept Elect, Al Mickiewicza 30, PL-30059 Krakow, Poland
[2] Warsaw Univ Technol, Fac Phys, Ul Koszykowa 75, PL-00662 Warsaw, Poland
[3] Polish Acad Sci, Inst Mol Phys, Ul Smoluchowskiego 17, PL-60179 Poznan, Poland
[4] Aalto Univ Sch Sci, Dept Appl Phys, NanoSpin, POB 15100, FI-00076 Aalto, Finland
[5] Adam Mickiewicz Univ, Fac Phys, Ul Umultowska 85, PL-61614 Poznan, Poland
来源：
APPLIED PHYSICS LETTERS | 2016年 / 109卷 / 07期
基金：
欧洲研究理事会;
关键词：
MULTIFERROIC HETEROSTRUCTURES; FERROMAGNETIC-RESONANCE; MAGNETIZATION REVERSAL;
D O I：
10.1063/1.4961124
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Dynamic properties of NiFe thin films on PMN-PT piezoelectric substrate are investigated using the spin-diode method. Ferromagnetic resonance (FMR) spectra of microstrips with varying width are measured as a function of magnetic field and frequency. The FMR frequency is shown to depend on the electric field applied across the substrate, which induces strain in the NiFe layer. Electric field tunability of up to 100MHz per 1 kV/cm is achieved. An analytical model based on total energy minimization and the Landau-Lifshitz-Gilbert equation, taking into account the magnetostriction effect, is used to explain the measured dynamics. Based on this model, conditions for optimal electric-field tunable spin diode FMR in patterned NiFe/PMN-PT structures are derived. Published by AIP Publishing.
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页数：4
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