Growth of 57Fe-doped YBa2Cu3O7-δ single crystals for Mössbauer and susceptibility measurements

I. Tittonen*, J. Hietaniemi, J. Huttunen, M. Karppinen, T. Katila, J. Lindén, L. Niinistö, K. Ullakko

*Korresponderande författare för detta arbete

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Sammanfattning

57Fe-doped and undoped single crystals were grown for Mössbauer and magnetic AC susceptibility measurements. The effects of cooling rate and the concentration of the YBa2(Cu1-x57Fex)3O7-δ-powder in the melt were examined. The lattice parameters of the single crystals were determined by x-ray diffraction. Growth in air yielded orthorhombic crystals with a- and b-axes differing only slightly and having Tc=77K for undoped and 57 K for 57Fe-doped crystals. Mössbauer spectra indicated the presence of regions with different oxygen contents.

OriginalspråkEngelska
Sidor (från-till)1259-1260
Antal sidor2
TidskriftPhysica C: Superconductivity and its Applications
Volym162-164
UtgåvaPart 2
DOI
StatusPublicerad - dec 1989
MoE-publikationstypA1 Tidskriftsartikel-refererad

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