Cryogenic scanning Hall-probe microscope with centimeter scan range and submicron resolution

2005 ◽  
Vol 76 (10) ◽  
pp. 103702 ◽  
Author(s):  
Rafael B. Dinner ◽  
M. R. Beasley ◽  
Kathryn A. Moler
Keyword(s):  
Hall Probe ◽  
Probe Microscope ◽  
Submicron Resolution

scholarly journals An ultra-low temperature scanning Hall probe microscope for magnetic imaging below 40 mK

2014 ◽  
Vol 85 (10) ◽  
pp. 103703 ◽  
Author(s):  
Özgür Karcı ◽  
Julian O. Piatek ◽  
Pau Jorba ◽  
Münir Dede ◽  
Henrik M. Rønnow ◽  
...  
Keyword(s):  
Low Temperature ◽  
Hall Probe ◽  
Magnetic Imaging ◽  
Probe Microscope ◽  
Temperature Scanning

scholarly journals Room-temperature scanning Hall probe microscope (RT-SHPM) imaging of garnet films using new high-performance InSb sensors

2002 ◽  
Vol 38 (5) ◽  
pp. 2438-2440 ◽  
Author(s):  
A. Oral ◽  
A. Kaval ◽  
M. Dede ◽  
H. Masuda ◽  
A. Okamoto ◽  
...  
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Hall Probe ◽  
Garnet Films ◽  
Probe Microscope ◽  
Temperature Scanning

Observation of Three Dimensional Magnetic Fields of Tool Steel (JIS-SKS93) around Vicker's Indentations

2013 ◽  
Vol 372 ◽  
pp. 265-269
Author(s):  
Katsuyuki Kida ◽  
Takashi Honda
Keyword(s):  
Plastic Deformation ◽  
Magnetic Fields ◽  
Crack Growth ◽  
Tool Steel ◽  
Three Dimensional ◽  
Hall Probe ◽  
Probe Microscope ◽  
Non Destructive ◽  
The Magnetic Field ◽  
Destructive Methods

Crack growth under cyclic loading causes failure of machine components. Non-destructive methods that can be related to plastic deformation around crack tip are necessary to study the crack growth. In the present work, a scanning Hall probe microscope (SHPM) equipped with GaAs film sensors was used to observe the magnetic fields around the plastic deformation induced by Vicker's indentations in tool steel specimens (SKS93, JIS B 4404: 2006, equivalent to AISI W4 tool steel). The magnetic field around a 2.94N-indentation was compared to that of a 294N-indentation. It was found that the decrease in the magnetic fields depends on the plastic deformation size.

Localization of Partial Magnetization around Artificial Slits in Square Bars of Medium Carbon Low Alloy Steel JIS S45C

2011 ◽  
Vol 217-218 ◽  
pp. 1297-1302 ◽  
Author(s):  
M. Uryu ◽  
Katsuyuki Kida ◽  
Takashi Honda ◽  
Edson Costa Santos ◽  
K. Saruwatari
Keyword(s):  
Stress Concentration ◽  
Three Dimensional ◽  
Hall Probe ◽  
Low Alloy Steels ◽  
Film Sensor ◽  
Medium Carbon ◽  
Alloy Steels ◽  
Probe Microscope ◽  
Non Destructive

Fatigue failure of steel occurs when cracks form and grow in the material’s stress concentration area. In order to understand the relation between stress concentration and crack propagation phenomena, non-destructive evaluation methods that can be related to in-situ measurements around the stress concentration area are necessary. In the present work, we developed a scanning Hall probe microscope (SHPM) equipped in a GaAs film sensor and observed three dimensional magnetic fields at room temperature in air. Medium carbon low alloy steels specimens (JIS, S45C) were used in the experiments. Only the area around the artificial slit had been magnetized and the effect of the magnetization area on the artificial slit was observed.

Changes in Magnetic Fields in Tool Steel (SKS93, JIS) under Single Tensile Load

2013 ◽  
Vol 307 ◽  
pp. 144-148 ◽  
Author(s):  
Katsuyuki Kida ◽  
Megumi Uryu ◽  
Takashi Honda ◽  
Teruaki Shimoji ◽  
Edson Costa Santos ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Tool Steel ◽  
Three Dimensional ◽  
Tensile Load ◽  
Steel Specimen ◽  
Tensile Loading ◽  
Hall Probe ◽  
Observation Methods ◽  
Probe Microscope ◽  
Non Destructive

Fatigue failure of machine components is caused by cyclic load. Non-destructive observation methods that can be related to stress are necessary to study the fatigue phenomena. In the present work, a three-dimensional scanning Hall probe microscope (SHPM) equipped with GaAs film sensors was used to observe the fundamental features of the magnetic fields in a tool steel specimen (SKS93, JIS B 4404: 2006, equivalent to AISI W4 tool steel) during tensile loading. The nature of the magnetic fields during tensile loadings of 430μstrain and 640μstrain was observed using the SHPM. It was found that the magnetic fields decrease due to the tensile loading.

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