التفاصيل البيبلوغرافية
| العنوان: |
A technique for error estimation of linewidth and damping parameters extracted from ferromagnetic resonance measurements. |
| المؤلفون: |
Buford, Benjamin1, Dhagat, Pallavi1, Jander, Albrecht1 jander@eecs.oregonstate.edu |
| المصدر: |
Journal of Applied Physics. 2015, Vol. 117 Issue 17, p17E109-1-17E109-4. 4p. 1 Diagram, 1 Chart, 4 Graphs. |
| مصطلحات موضوعية: |
*FERROMAGNETIC resonance, *THIN films, *FERROMAGNETISM, *MAGNETIC resonance, *RESONATORS |
| مستخلص: |
Ferromagnetic resonance (FMR) characterization, using a vector network analyzer (VNA), is widely used to determine anisotropy, g-factor, and Gilbert damping parameter of magnetic thin films, but results are typically reported without calculation of the measurement accuracy. We present a method of processing VNA-FMR measurements to determine both the value and confidence interval of these properties. The discussion is presented using FMR data obtained from stacks of MgO/CoFeB/Ta/ CoFeB/MgO with varying CoFeB thickness. Measured S-parameters are de-embedded, drift corrected, fit to a Lorentzian curve, and analyzed to produce a confidence interval. A method of plotting the results of the Lorentzian fitting such that fitting errors or measurement drift can be visually analyzed is shown. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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