scholarly journals High resolution magnetic force microscopy using focused ion beam modified tips

2002 ◽  
Vol 81 (5) ◽  
pp. 865-867 ◽  
Author(s):  
G. N. Phillips ◽  
M. Siekman ◽  
L. Abelmann ◽  
J. C. Lodder
Keyword(s):  
High Resolution ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Force Microscopy

scholarly journals Focused Ion Beam Milled CoPt Magnetic Force Microscopy Tips for High Resolution Domain Images

2004 ◽  
Vol 40 (4) ◽  
pp. 2194-2196 ◽  
Author(s):  
L. Gao ◽  
L.P. Yue ◽  
T. Yokota ◽  
R. Skomski ◽  
S.H. Liou ◽  
...  
Keyword(s):  
High Resolution ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Force Microscopy

Magnetic Force Microscopy Imaging of Current Paths

2002 ◽  
Vol 738 ◽  
Author(s):  
R. Yongsunthon ◽  
A. Stanishevsky ◽  
P. J. Rous ◽  
E. D. Williams
Keyword(s):  
Magnetic Force Microscopy ◽  
Room Temperature ◽  
Magnetic Force ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Microscopy Imaging ◽  
Gold Nanowire ◽  
Force Microscopy ◽  
Current Path ◽  
Dc Current

ABSTRACTWe demonstrate Magnetic Force Microscopy (MFM) imaging, at room temperature in air, of a 0.25mA DC current path in a 140nm-wide gold nanowire. The nanowire was created by focused ion beam milling of a 12μm wide Cr/Au line of 20nm/110nm Cr/Au thickness. Iterative fitting of the MFM data to an idealized model of the structure yielded a nanowire resistivity a factor of 3.5 higher than that of a control Cr/Au region which was unaffected by the ion beam processing. MFM imaging of an ion-implant patterned line shows current deflection around the implant region.

Magnetic Force Microscopy Signatures of Defects in Current-carrying Lines

2001 ◽  
Vol 699 ◽  
Author(s):  
Ruchirej Yongsunthon ◽  
Ellen D. Williams ◽  
Andrei Stanishevsky ◽  
Jonathan McCoy ◽  
Robert Pego ◽  
...  
Keyword(s):  
Current Density ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Force Microscopy ◽  
Straight Line ◽  
Void Defects ◽  
Wide Line ◽  
Current Densities

AbstractThe spatial variation of current density in lines with model void defects fabricated using Focused-ion Beam (FIB) milling has been investigated using Magnetic Force Microscopy (MFM). The model defects were designed to systematically simulate the natural void shapes that occur in electromigration failure of current-carrying lines. Inhomogenous current density around the defects manifests itself in the form of atypical asymmetry in the MFM signal near the defects. The extent of the asymmetry is greatly dependent upon the defect geometry. At current densities of 3-5×106 A/cm2, an asymmetry in the MFM signal is clearly visible around defects, such as a (1×1) μ,2 notch and a (1×9) μm2 45°-slanted slit, at the edge of a 10μm wide line. We present a survey of MFM images of various defect structures in current-carrying lines that perturb the homogenous current flow of a straight line.

A comparison of domain images obtained for nanophase alloys by magnetic force microscopy and high resolution Lorentz electron microscopy

1995 ◽  
Vol 31 (6) ◽  
pp. 3349-3351 ◽  
Author(s):  
M.R.J. Gibbs ◽  
M.A. Al-Khafaji ◽  
W.M. Rainforth ◽  
H.A. Davies ◽  
K. Babcock ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Force Microscopy

Fabrication of Magnetic Tips for High-Resolution Magnetic Force Microscopy

2013 ◽  
Vol 543 ◽  
pp. 35-38 ◽  
Author(s):  
Masaaki Futamoto ◽  
Tatsuya Hagami ◽  
Shinji Ishihara ◽  
Kazuki Soneta ◽  
Mitsuru Ohtake
Keyword(s):  
Magnetic Material ◽  
High Resolution ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Magnetic Force Microscope ◽  
Force Microscopy ◽  
High Magnetic Moment ◽  
Tip Radius ◽  
Better Than ◽  
Sputtering System

Effects of magnetic material, coating thickness, and tip radius on magnetic force microscope (MFM) spatial resolution have been systematically investigated. MFM tips are prepared by using an UHV sputtering system by coating magnetic materials on non-magnetic Si tips employing targets of Ni, Ni-Fe, Co, Fe, Fe-B, and Fe-Pd. MFM spatial resolutions better than 9 nm have been confirmed by employing magnetic tips coated with high magnetic moment materials with optimized thicknesses.

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