Intermixing of Fe at Cu(1)-chain and Cu(2)-plane Sites in FeSr2YCu2O7.30 System: A Neutron Diffraction and Mössbauer Spectroscopic Study

Author

V. P.S. Awana
S. K. Malik
William B. Yelon, Missouri University of Science and TechnologyFollow
J. Lindén
M. Karppinen
H. Yamauchi

Abstract

The presently prepared FeSr₂YCu₂O_z (Fe-1212) sample crystallizes in a tetragonal structure (space group P4/mmm). Rietveld structural refinement of the room temperature neutron diffraction data reveal that nearly half of the Fe remains at the Cu(1)-chain site while the other half goes to the Cu(2)-plane site in the nominal Cu(1)Sr₂YCu(2)₂O₇ or Cu-1212 structure. In this compound, Cu is distributed over the chain and plane sites appropriately. Oxygen content of the present Fe-1212 sample, as determined from the oxygen occupancies, is 7.30(2) per formula unit. Existence of Fe at the two different lattice sites is also confirmed from the room temperature ⁵⁷Fe Mössbauer spectrum of the compound. © 2002 Elsevier Science B.V. All rights reserved.

Recommended Citation

V. P. Awana et al., "Intermixing of Fe at Cu(1)-chain and Cu(2)-plane Sites in FeSr2YCu2O7.30 System: A Neutron Diffraction and Mössbauer Spectroscopic Study," Physica B: Condensed Matter, vol. 312 thru 313, pp. 62 - 64, Elsevier, Mar 2002.

The definitive version is available at https://doi.org/10.1016/S0921-4526(01)01161-9

Department(s)

Physics

Comments

Ministry of Education, Culture, Sports, Science and Technology, Grant IDP-00128

Keywords and Phrases

Fe-1212; Mössbauer spectroscopy; Neutron diffraction

International Standard Serial Number (ISSN)

0921-4526

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Elsevier, All rights reserved.

Publication Date

01 Mar 2002