scholarly journals Detection of femtosecond spin voltage pulses in a thin iron film

2020 ◽  
Vol 7 (6) ◽  
pp. 065101
Author(s):  
K. Bühlmann ◽  
G. Saerens ◽  
A. Vaterlaus ◽  
Y. Acremann
Keyword(s):  
Iron Film ◽  
Voltage Pulses

Temperature Dependence of Magnetic Domains and Wall Structures

1972 ◽  
Vol 30 ◽  
pp. 496-497
Author(s):  
Sonoko Tsukahara ◽  
Tadami Taoka ◽  
Hisao Nishizawa
Keyword(s):  
Temperature Dependence ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Iron Film ◽  
Objective Lens ◽  
Lorentz Microscopy ◽  
Domain Structures ◽  
Wall Structures ◽  
Crystal Films ◽  
Metallurgical Structure

The high voltage Lorentz microscopy was successfully used to observe changes with temperature; of domain structures and metallurgical structures in an iron film set on the hot stage combined with a goniometer. The microscope used was the JEM-1000 EM which was operated with the objective lens current cut off to eliminate the magnetic field in the specimen position. Single crystal films with an (001) plane were prepared by the epitaxial growth of evaporated iron on a cleaved (001) plane of a rocksalt substrate. They had a uniform thickness from 1000 to 7000 Å.The figure shows the temperature dependence of magnetic domain structure with its corresponding deflection pattern and metallurgical structure observed in a 4500 Å iron film. In general, with increase of temperature, the straight domain walls decrease in their width (at 400°C), curve in an iregular shape (600°C) and then vanish (790°C). The ripple structures with cross-tie walls are observed below the Curie temperature.

Effect of the rise rate of nanosecond high-voltage pulses on the breakdown of air gaps

1999 ◽  
Vol 25 (9) ◽  
pp. 749-751 ◽  
Author(s):  
L. M. Vasilyak ◽  
S. P. Vetchinin ◽  
D. N. Polyakov
Keyword(s):  
High Voltage ◽  
Air Gaps ◽  
Rise Rate ◽  
Voltage Pulses

Submonolayer iron film growth on reconstructedIr(100)−(5×1)

2003 ◽  
Vol 67 (12) ◽  
Author(s):  
L. Hammer ◽  
W. Meier ◽  
A. Schmidt ◽  
K. Heinz
Keyword(s):  
Film Growth ◽  
Iron Film
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