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Signature of twin planes in Mössbauer spectroscopy of cuprate superconductors

Boolchand, P., Blue, C., Elgaid, K. ORCID:, Huff, W., Kilinc, A., McDaniel, D., Biswas, P., Zhou, D. and Oostens, J. 1990. Signature of twin planes in Mössbauer spectroscopy of cuprate superconductors. Hyperfine Interactions 62 (1-2) , pp. 73-88. 10.1007/BF02407664

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One of the four quadrupole doublets (A, B, C, and D) observed in Mössbauer spectra of orthorhombic (Y or RE)1Ba2(Cu1-xFex)307-δ(δ≈0) samples is identified with Fe dopant replacing a Cu site in twin planes. The site in question, labelled as D, is characterized by a quadrupole splitting ΔD in the range 1.6±0.1 mm/s. The D-site intensity is found to approach zero when the 1-2-3, material is driven tetragonal, either upon oxygen desorption, upon oxygen loading, or upon increasing the Fe-dopant concentration.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
ISSN: 0304-3834
Last Modified: 04 Nov 2022 12:18

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