Signature of twin planes in Mössbauer spectroscopy of cuprate superconductors

Boolchand, P., Blue, C., Elgaid, K. ORCID: https://orcid.org/0000-0003-3265-1097, 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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Abstract

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:	Schools > Engineering
ISSN:	0304-3834
Last Modified:	04 Nov 2022 12:18
URI:	https://orca.cardiff.ac.uk/id/eprint/122586

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