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A new method of high magnetic field generation and its applications

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1 Author(s)
Date, M. ; Osaka University, Toyonaka, Osaka, Japan

A new method of generating high pulsed magnetic field up to about 1 MOe without destroying coils is described. The magnet consists of multi-layer coils which were designed so as to share the strong Maxwell stress within their tensile strength. A small 4-layer model magnet was tested and the maximum field of 1.07 MOe with the pulse width of 0.18 m sec. was obtained without destroying the coil. A three-years project of constructing a high magnetic field laboratory based on the new idea is proceeding in Osaka University. A 1.5 M Joule energy source is used to produce up to 1 M0e within a volume of 20mmD × 20 mm and low temperature experiments will be possible after two years. At present, however, the experiments at liquid helium temperature are limited up to 0.5 MOe. The submillimeter electron spin resonance experiments under the strong field were done using HCN and H2O lasers and the determination of exchange constant between dissimilar spins was done. New terms, H2S2, H2SI and H3S in the spin Hamiltonian are also discussed. Magnetization measurements in metals and compounds are reported.

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Magnetics, IEEE Transactions on  (Volume:12 ,  Issue: 6 )