Magnetic order of the Pr sublattice in tetragonal and orthorhombic Pr1-xGdxBa2Cu3O7-δ observed by 155Gd-Mössbauer spectroscopy

G. Wortmann; I. Felner

doi:10.1016/0038-1098(90)90771-3

Magnetic order of the Pr sublattice in tetragonal and orthorhombic Pr_1-xGd_xBa₂Cu₃O_7-δ observed by ¹⁵⁵Gd-Mössbauer spectroscopy

G. Wortmann^*, I. Felner

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

¹⁵⁵Gd-Mössbauer studies of (Pr_0.925Gd_0.075)Ba₂Cu₃O_7-δ in the tetragonal (δ = 0.9) and orthorhombic (δ = 0.1) phase reveal transitions to magnetic order at T_N = 7.5 K and 16.5 K, respectively, of the Pr sublattice. The hyperfine interaction parameters of ¹⁵⁵Gd in the orthorhombic sample above T_N compare well with those data obtained in orthorhombic GdBa₂Cu₃O_7-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.

Original language	English
Pages (from-to)	981-985
Number of pages	5
Journal	Solid State Communications
Volume	75
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(90)90771-3
State	Published - Sep 1990
Externally published	Yes

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title = "Magnetic order of the Pr sublattice in tetragonal and orthorhombic Pr1-xGdxBa2Cu3O7-δ observed by 155Gd-M{\"o}ssbauer spectroscopy",

abstract = "155Gd-M{\"o}ssbauer 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.",

author = "G. Wortmann and I. Felner",

year = "1990",

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doi = "10.1016/0038-1098(90)90771-3",

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journal = "Solid State Communications",

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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.

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Magnetic order of the Pr sublattice in tetragonal and orthorhombic Pr_1-xGd_xBa₂Cu₃O_7-δ observed by ¹⁵⁵Gd-Mössbauer spectroscopy

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