TY - JOUR
T1 - Magnetic order of the Pr sublattice in tetragonal and orthorhombic Pr1-xGdxBa2Cu3O7-δ observed by 155Gd-Mössbauer spectroscopy
AU - Wortmann, G.
AU - Felner, I.
PY - 1990/9
Y1 - 1990/9
N2 - 155Gd-Mössbauer studies of (Pr0.925Gd0.075)Ba2Cu3O7-δ in the tetragonal (δ = 0.9) and orthorhombic (δ = 0.1) phase reveal transitions to magnetic order at TN = 7.5 K and 16.5 K, respectively, of the Pr sublattice. The hyperfine interaction parameters of 155Gd in the orthorhombic sample above TN compare well with those data obtained in orthorhombic GdBa2Cu3O7-δ and prove that Gd substitutes for Pr. The marked difference in ordering temperatures of the Pr sublattice for the two phases is discussed in the terms of the Pr-4f electron hybridization depending sensitively on the oxygen content δ.
AB - 155Gd-Mössbauer studies of (Pr0.925Gd0.075)Ba2Cu3O7-δ in the tetragonal (δ = 0.9) and orthorhombic (δ = 0.1) phase reveal transitions to magnetic order at TN = 7.5 K and 16.5 K, respectively, of the Pr sublattice. The hyperfine interaction parameters of 155Gd in the orthorhombic sample above TN compare well with those data obtained in orthorhombic GdBa2Cu3O7-δ and prove that Gd substitutes for Pr. The marked difference in ordering temperatures of the Pr sublattice for the two phases is discussed in the terms of the Pr-4f electron hybridization depending sensitively on the oxygen content δ.
UR - http://www.scopus.com/inward/record.url?scp=0025491051&partnerID=8YFLogxK
U2 - 10.1016/0038-1098(90)90771-3
DO - 10.1016/0038-1098(90)90771-3
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AN - SCOPUS:0025491051
SN - 0038-1098
VL - 75
SP - 981
EP - 985
JO - Solid State Communications
JF - Solid State Communications
IS - 12
ER -