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Digitale Medien

New high-pressure Sr-Ca-Cu-O compounds and their superconducting properties (1994)

Adachi, Seiji ; Yamauchi, H. ; Tanaka, Shoji ; [weitere]

Springer

Journal of superconductivity 7 (1994), S. 55-58

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Details

ISSN: 1572-9605

Schlagwort(e): Sr-Ca-Cu-O superconductor ; high-pressure synthesis ; oxidizer ; “0223” structure ; “infinite-layer” structure

Quelle: Springer Online Journal Archives 1860-2000

Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik

Notizen: Abstract It is shown for (Sr, Ca)1−y CuO2.00+z (nominal composition) superconductors fabricated under a high pressure of 5 GPa and at 930°C that, as z increases, the Meissner fraction increases from a few percent to 20% and then starts to decrease. In the X-ray powder diffraction pattern for the sample with the maximum Meissner fraction, it is obvious that the “infinite-layer” structure has been decomposed and a new structure becomes the major phase. It appears that the new structure is the “0223” structure which consists of rock-salt and the “infinite-layer” type blocks. This material is likely to be a new superconducting cuprate.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00730368

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