Download Advances in Superconductivity II: Proceedings of the 2nd by K. Alex Müller (auth.), Prof. Dr. Takehiko Ishiguro, Dr. PDF

By K. Alex Müller (auth.), Prof. Dr. Takehiko Ishiguro, Dr. Koji Kajimura (eds.)

Since the 1st foreign Symposium on Superconductivity (ISS '88) was once held in Nagoya, Japan in 1988, major advances were completed in a variety of hot temperature superconductivity examine. even if the T c's of lately stumbled on oxide superconductors nonetheless don't exceed the list excessive price of 125K said ahead of that assembly, the enrichment within the number of fabrics may still turn out worthwhile to the research of the basic mechanism of superconductiv­ ity in those unique fabrics. the invention of the n-type superconducting oxides proved to oppose the formerly held empirical proven fact that the cost providers in all oxide superconductors have been holes. additionally, optimization of the cost service density has been verified as a method to enhance the superconducting right­ ties of the formerly recognized oxide fabrics. Many new experimental and theoreti­ cal advances were made in knowing either the elemental and the utilized elements of hot temperature superconductivity. during this latter quarter, numerous new processing recommendations were investigated, and the serious present densities and different major parameters of either bulk and skinny movie oxide superconductors are speedily being superior. At this intriguing level of study in extreme temperature superconductivity, this can be very very important to supply a chance for researchers from undefined, academia, govt and different associations all over the world to freely alternate details and therefore give a contribution to the extra development of research.

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Extra resources for Advances in Superconductivity II: Proceedings of the 2nd International Symposium on Superconductivity (ISS ’89), November 14–17, 1989, Tsukuba

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FeIner and H. Sompolinsky, Phys. Rev. B 36,840 (1987) K. Fischer, A. Rojek, S. Thierfeldt, H. R. Arons, Physica Cl60, 466 (1989) Y. Wolfus, Y. Yeshllrun and I. FeIner, Phys. Rev. C. C. Yeh in AIP Confel'ence Proceedings on Inhomogeneaus Superconductors, Eds. U. L. A. R. Leibowitz, Amprican Physlca] Institute, New York, p. 67 (1980) J. D. Hettinger et al, Phys. Rev. LeU. 62, 2044 (1989) Fabrication and Characterization of BSCCO Films KEncHI ÜGAWA, KEIKICHI NAKAMURA, HIROTOSHI HAYAKAWA1 , HISAO HATTORI2 , JUNICHI SAT03 , and SHOZO lKEDA National Research Institute for Metals, 2-1, Sengen 1-chome, Tsukuba, Ibaraki, 305 Japan ABSTRACT A present stage of BSCCO film fabrieation teehniques is reviewed and metallographie struetures of high and low Je 2223 films are eompared.

This fune- tlonal form has been a topie of extensive investigations for deeades(8-11,16). Expet'imentally, it has been established that the pinning forees, and henee the et'itieal eurrent, Je too, obey a simple sealing law: Je = F(T) 'G(h) where h = H/H e 2 is the redueed fleld, Hc 2 is the upper eritieal field. Fand G, the sealing functions, are quite sensitive to microstrlleture alld materials. above var i ab 1e separnt ion. It is apparent that our reslllts are cOllsistent with the In the absence of slIch aseparation a one parameter sealing wOllld be impossible.

Kramer, J. Appl. Phys. 44, 1360 (1973) Y. Yeshurun, I. FeIner and H. Sompolinsky, Phys. Rev. B 36,840 (1987) K. Fischer, A. Rojek, S. Thierfeldt, H. R. Arons, Physica Cl60, 466 (1989) Y. Wolfus, Y. Yeshllrun and I. FeIner, Phys. Rev. C. C. Yeh in AIP Confel'ence Proceedings on Inhomogeneaus Superconductors, Eds. U. L. A. R. Leibowitz, Amprican Physlca] Institute, New York, p. 67 (1980) J. D. Hettinger et al, Phys. Rev. LeU. 62, 2044 (1989) Fabrication and Characterization of BSCCO Films KEncHI ÜGAWA, KEIKICHI NAKAMURA, HIROTOSHI HAYAKAWA1 , HISAO HATTORI2 , JUNICHI SAT03 , and SHOZO lKEDA National Research Institute for Metals, 2-1, Sengen 1-chome, Tsukuba, Ibaraki, 305 Japan ABSTRACT A present stage of BSCCO film fabrieation teehniques is reviewed and metallographie struetures of high and low Je 2223 films are eompared.

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