scholarly journals A Ti/Pt/Co Multilayer Stack for Transfer Function Based Magnetic Force Microscopy Calibrations

2021 ◽  
Vol 7 (6) ◽  
pp. 78
Author(s):  
Baha Sakar ◽  
Sibylle Sievers ◽  
Alexander Fernández Scarioni ◽  
Felipe Garcia-Sanchez ◽  
İlker Öztoprak ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Reference Sample ◽  
Image Data ◽  
Stray Field ◽  
Magnetization Distribution ◽  
Finite Width ◽  
Stripe Domain ◽  
Micromagnetic Simulations ◽  
Force Microscopy

Magnetic force microscopy (MFM) is a widespread technique for imaging magnetic structures with a resolution of some 10 nanometers. MFM can be calibrated to obtain quantitative (qMFM) spatially resolved magnetization data in units of A/m by determining the calibrated point spread function of the instrument, its instrument calibration function (ICF), from a measurement of a well-known reference sample. Beyond quantifying the MFM data, a deconvolution of the MFM image data with the ICF also corrects the smearing caused by the finite width of the MFM tip stray field distribution. However, the quality of the calibration depends critically on the calculability of the magnetization distribution of the reference sample. Here, we discuss a Ti/Pt/Co multilayer stack that shows a stripe domain pattern as a suitable reference material. A precise control of the fabrication process, combined with a characterization of the sample micromagnetic parameters, allows reliable calculation of the sample’s magnetic stray field, proven by a very good agreement between micromagnetic simulations and qMFM measurements. A calibrated qMFM measurement using the Ti/Pt/Co stack as a reference sample is shown and validated, and the application area for quantitative MFM measurements calibrated with the Ti/Pt/Co stack is discussed.

scholarly journals A Ti/Pt/Co Multilayer Stack for Transfer Function Based Magnetic Force Microscopy Calibrations

2021 ◽  
Author(s):  
Baha Sakar ◽  
Sibylle Sievers ◽  
Alexander Fernández Scarioni ◽  
Felipe Garcia-Sanchez ◽  
İlker Öztoprak ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Reference Sample ◽  
Image Data ◽  
Stray Field ◽  
Magnetization Distribution ◽  
Finite Width ◽  
Stripe Domain ◽  
Micromagnetic Simulations ◽  
Force Microscopy

Magnetic force microscopy (MFM) is a widespread technique for imaging magnetic structures with a resolution of some 10 nanometers. MFM can be calibrated to obtain quantitative (qMFM) spatially resolved magnetization data in units of A/m by determining the calibrated point spread function of the instrument, its instrument calibration function (ICF), from a measurement of a well-known reference sample. Beyond quantifying the MFM data, a deconvolution of the MFM image data with the ICF also corrects the smearing caused by the finite width of the MFM tip stray field distribution. However, the quality of the calibration depends critically on the calculability of the magnetization distribution of the reference sample. Here, we discuss a Ti/Pt/Co multilayer stack which shows a stripe domain pattern as a suitable reference material. A precise control of the fabrication process combined with a characterization of the sample micromagnetic parameters allows to reliably calculate the sample’s magnetic stray field, proven by a very good agreement between micromagnetic simulations and qMFM measurements. A calibrated qMFM measurement using the Ti/Pt/Co stack as a reference sample is shown and validated and the application area for quantitative MFM measurements calibrated with the Ti/Pt/Co stack is discussed.

scholarly journals Skyrmion Formation in Nanodisks Using Magnetic Force Microscopy Tip

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2627
Author(s):  
Mateusz Zelent ◽  
Iuliia V. Vetrova ◽  
Jan Šoltýs ◽  
Xiaoguang Li ◽  
Yan Zhou ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Local Field ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Magnetic State ◽  
Magnetic Domain ◽  
Local Magnetic Field ◽  
Micromagnetic Simulations ◽  
Force Microscopy ◽  
Magnetization State

We demonstrated numerically the skyrmion formation in ultrathin nanodisks using a magnetic force microscopy tip. We found that the local magnetic field generated by the magnetic tip significantly affects the magnetization state of the nanodisks and leads to the formation of skyrmions. Experimentally, we confirmed the influence of the local field on the magnetization states of the disks. Micromagnetic simulations explain the evolution of the magnetic state during magnetic force microscopy scanning and confirm the possibility of skyrmion formation. The formation of the horseshoe magnetic domain is a key transition from random labyrinth domain states into the skyrmion state. We showed that the formation of skyrmions by the magnetic probe is a reliable and repetitive procedure. Our findings provide a simple solution for skyrmion formation in nanodisks.

scholarly journals Uncertainty Analysis of Stray Field Measurements by Quantitative Magnetic Force Microscopy

2020 ◽  
pp. 1-1 ◽  
Author(s):  
Xiukun Hu ◽  
Gaoliang Dai ◽  
Sibylle Sievers ◽  
Alexander Fernandez Scarioni ◽  
Volker Neu ◽  
...  
Keyword(s):  
Uncertainty Analysis ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Field Measurements ◽  
Stray Field ◽  
Force Microscopy
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