超高圧下の金属化現象
1971 年 40 巻 10 号 p. 1063-1071
詳細
1971 年 40 巻 10 号 p. 1063-1071
A new technique to produce very high static pressure is first described. It involves a method with which a spherical pressure vessel containing specimen is to be shrinked uniformly in a compressed liquid. The load forces acting upon the sphere outer surface are centrally concentrated to compress the specimen. The pressure can thus be elevated to the value at least higher than 2 Mb. When the density of vitreous silica compressed in the vessel above mentioned is measured and compared with the data of shock compression by Wackerle and Al'tshuler, it is possible to make an order estimation of the produced pressure.
Next to be reported is the results of our recent experiments on the metallic transitions in such 3d transition metal oxides as α-Fe2O3, Cr203, TiO2, etc.
Finally, a scope and a review on the modern high pressure physics are to be given.
