High spatial-resolution domain-observation of longitudinal thin film media by spin-polarized scanning electron microscopy

1994 ◽  
Vol 30 (3) ◽  
pp. 1327-1330 ◽  
Author(s):  
H. Matsuyama ◽  
K. Koike ◽  
F. Tomiyama ◽  
Y. Shiroishi ◽  
A. Ishikawa ◽  
...  
1994 ◽  
Vol 75 (10) ◽  
pp. 6890-6890
Author(s):  
H. Matsuyama ◽  
K. Koike ◽  
F. Tomiyama ◽  
H. Aoi ◽  
Y. Shiroishi ◽  
...  

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Gopal Venkatesh Babu ◽  
Palani Perumal ◽  
Sakthivel Muthu ◽  
Sridhar Pichai ◽  
Karthik Sankar Narayan ◽  
...  

2008 ◽  
Vol 14 (S3) ◽  
pp. 13-16 ◽  
Author(s):  
F. Neves ◽  
A. Cunha ◽  
I. Martins ◽  
J.B. Correia ◽  
M. Oliveira ◽  
...  

The use of a high-brightness field-emission gun (FEG) in scanning electron microscopy (SEM) is a powerful technique to examine microstructures at very high spatial resolution down to nanometer level and has significantly enhanced our ability to solve challenging materials problems, allowing studies of nanoprecipitates.


Author(s):  
Kazuyuki Koike ◽  
Hideo Matsuyama

Spin-polarized scanning electron microscopy (spin SEM), where the secondary electron spin polarization is used as the image signal, is a novel technique for magnetic domain observation. Since its first development by Koike and Hayakawa in 1984, several laboratories have extensively studied this technique and have greatly improved its capability for data extraction and its range of applications. This paper reviews the progress over the last few years.Almost all the high expectations initially held for spin SEM have been realized. A spatial resolution of several hundreds angstroms has been attained, which is nearly one order of magnitude higher than that of conventional methods for thick samples. Quantitative analysis of magnetization direction has been performed more easily than with conventional methods. Domain observation of the surface of three-dimensional samples has been confirmed to be possible. One of the drawbacks, a long image acquisition time, has been eased by combining highspeed image-signal processing with high speed scanning, although at the cost of image quality. By using spin SEM, the magnetic structure of a 180 degrees surface Neel wall, magnetic thin films, multilayered films, magnetic discs, etc., have been investigated.


1997 ◽  
Vol 473 ◽  
Author(s):  
H. S. Yang ◽  
F. R. Brotzen ◽  
D. L. Callahan ◽  
C. F. Dunn

ABSTRACTQuantitative measurement of the adhesion strength of thin film metallizations has been achieved by a novel technique employing electrostatic forces to generate delaminating stresses. This technique has been used in testing the adhesion of Al-Cu, Cu, and Al multilayer films deposited on Si. Micro-blister-type failure is revealed by scanning electron microscopy. The delamination process and the geometry of the blister are discussed. The measured adhesion data fit a Weibull distribution function.


2002 ◽  
Vol 10 (2) ◽  
pp. 22-23 ◽  
Author(s):  
David C Joy ◽  
Dale E Newbury

Low Voltage Scanning Electron Microscopy (LVSEM), defined as operation in the energy range below 5 keV, has become perhaps the most important single operational mode of the SEM. This is because the LVSEM offers advantages in the imaging of surfaces, in the observation of poorly conducting and insulating materials, and for high spatial resolution X-ray microanalysis. These benefits all occur because a reduction in the energy Eo of the incident beam leads to a rapid fall in the range R of the electrons since R ∼k.E01.66. The reduction in the penetration of the beam has important consequences.


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