In the spring of 1986, K.A. Müller and J.G. Bednortz  revealed that at temperatures higher that 30 K the ceramic compounds of lanthanum, barrium and copper oxides go into a superconducting state. In February, 1987, C.W. Chu et al.  synthesized yttrium compounds which go over into a superconducting state at temperatures T c close to 90 K. Several months later new superconductors with T c > 30 K were synthesized almost simultaneously at different laboratories in the USA, Japan, the USSR and other countries. These superconductors were called as high-T c superconductors.
KeywordsAnisotropy Mercury Europe Helium Soliton
Unable to display preview. Download preview PDF.
- 3.A.S. Davydov, Dokl. AN Ukr. SSR, Ser. A, N9 (1988) 47Google Scholar
- 5.A.S. Davydov, Supercond. Sci., Technol. 2 (1989) 153Google Scholar
- 14.L.S. Brizhik and A.S. Davydov, Fiz. Niz. Temp. 10 (1984) 358 and 748 [in Russian]Google Scholar
- 17.A.S. Davydov and V.N. Ermakov, Preprint ITP-89-68E, Kiev (1989)Google Scholar
- 25.L.S. Brizhik, Preprint ITP-89-3E, Kiev (1989)Google Scholar