Abstrakti
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.
Alkuperäiskieli | Englanti |
---|---|
Sivut | 1259-1260 |
Sivumäärä | 2 |
Julkaisu | Physica C: Superconductivity and its Applications |
Vuosikerta | 162-164 |
Numero | Part 2 |
DOI - pysyväislinkit | |
Tila | Julkaistu - jouluk. 1989 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |