Title :
Room temperature scanning micro-Hall probe microscopy under extremely large pulsed magnetic fields
Author :
Sandhu, Adarsh ; Masuda, Hiroshi ; Oral, Ahmet
Author_Institution :
Res. Centre for Quantum Effect Electron., Tokyo Inst. of Technol., Japan
Abstract :
The versatility of a room-temperature scanning Hall probe microscope system with an integrated minicoil capable of generating pulsed magnetic fields up to 2.9 T was demonstrated by imaging magnetic structures on the surface of 1.4-MB floppy disks and demagnetized strontium ferrite permanent magnets. Vibration isolation between the sample and minicoil was achieved by using a combination of quartz glass plates and silicone gel layers and enabled extremely fast measurements under fields as high as 2.9 T, without detrimental effects on a GaAs-AlGaAs micro-Hall probe sensor located at a height of 0.5 μm above the sample surface.
Keywords :
demagnetisation; ferrites; magnetic domains; magnetic structure; scanning probe microscopy; strontium compounds; surface magnetism; 0.5 micron; 1.4 MB; 2.9 T; 300 K; GaAs-AlGaAs; GaAs-AlGaAs micro-Hall probe sensor; SrFe2O3; demagnetized strontium ferrite permanent magnets; extremely large pulsed magnetic fields; floppy disks; magnetic structures; scanning micro-Hall probe microscopy; Demagnetization; Floppy disks; Hall effect devices; Magnetic field measurement; Magnetic fields; Magnetic force microscopy; Probes; Pulse generation; Temperature; Vibration measurement;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816183
