کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1799656 1524858 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetostriction measurement in thin films using laser Doppler vibrometry
ترجمه فارسی عنوان
اندازه گیری مغناطیس سنجی در فیلم های نازک با استفاده از لیزر داپلر ارتعاشی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی


• Laser Doppler vibrometry based technique to measure magnetostriction in thin films.
• Strain induced by an AC magnetic field under a DC magnetic bias.
• Picometer level deflections in polycrystalline cobalt and nickel ferrite thin films.

This paper reports the laser Doppler vibrometry based measurement of the magnetostriction in magnetic thin films. Using this method, the strain induced by an AC magnetic field in the polycrystalline cobalt ferrite and nickel ferrite thin films grown on silicon and platinized silicon substrates was measured under a DC magnetic bias. The experimental setup and the derivation of the magnetostriction constant from the experimentally measured deflection values are discussed. The magnetostriction values derived using force and bending moment balances were compared with that derived from an industry standard relationship. In addition, we corroborate our approach by comparing the values derived from bending theory calculations of magnetically induced torque to those from measurements using Vibrating Sample Magnetometer (VSM). At high DC magnetic field bias, the magnitude of magnetization calculated from the measured magnetostriction was found to match the measured magnetization by VSM.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 363, August 2014, Pages 179–187
نویسندگان
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