Intermixing of Fe at Cu(1)-chain and Cu(2)-plane sites in FeSr2YCu2O7.30 system: A neutron diffraction and Mössbauer spectroscopic study

V. P.S. Awana; S. K. Malik; W. B. Yelon; J. Lindén; M. Karppinen; H. Yamauchi

doi:10.1016/S0921-4526(01)01161-9

Intermixing of Fe at Cu(1)-chain and Cu(2)-plane sites in FeSr₂YCu₂O_7.30 system: A neutron diffraction and Mössbauer spectroscopic study

V. P.S. Awana^*
, S. K. Malik
, W. B. Yelon
, J. Lindén
, M. Karppinen
, H. Yamauchi

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › Scientific › peer-review

7 Citations (Scopus)

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.

Original language	English
Pages (from-to)	62-64
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	312-313
DOIs	https://doi.org/10.1016/S0921-4526(01)01161-9
Publication status	Published - Mar 2002
MoE publication type	A4 Article in a conference publication
Event	International Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States Duration: 6 Aug 2002 → 6 Aug 2002

Funding

The present work has been supported by a Grant-in-Aid for Scientific Research (Grant No. 11305002) from the Ministry of Education, Science and Culture of Japan, by an International Collaborative Research Project Grant-2000 of the Materials and Structures Laboratory, Tokyo Institute of Technology, and by the Academy of Finland (Decision No. 46039). V.P.S.A acknowledges the Japanese Society for Promotion of Sciences for awarding him the Foreigners Post Doctoral Fellowship (IDP-00128).

Keywords

Fe-1212
Mössbauer spectroscopy
Neutron diffraction

Access to Document

10.1016/S0921-4526(01)01161-9

Cite this

@article{e26f1c2e37624e42818cadf371e2e1d0,

title = "Intermixing of Fe at Cu(1)-chain and Cu(2)-plane sites in FeSr2YCu2O7.30 system: A neutron diffraction and M{\"o}ssbauer spectroscopic study",

abstract = "The presently prepared FeSr2YCu2Oz (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 M{\"o}ssbauer spectrum of the compound.",

keywords = "Fe-1212, M{\"o}ssbauer spectroscopy, Neutron diffraction",

author = "Awana, \{V. P.S.\} and Malik, \{S. K.\} and Yelon, \{W. B.\} and J. Lind{\'e}n and M. Karppinen and H. Yamauchi",

year = "2002",

month = mar,

doi = "10.1016/S0921-4526(01)01161-9",

language = "English",

volume = "312-313",

pages = "62--64",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

note = "International Conference on Strongly Correlated Electrons ; Conference date: 06-08-2002 Through 06-08-2002",

}

TY - JOUR

T1 - Intermixing of Fe at Cu(1)-chain and Cu(2)-plane sites in FeSr2YCu2O7.30 system

T2 - International Conference on Strongly Correlated Electrons

AU - Awana, V. P.S.

AU - Malik, S. K.

AU - Yelon, W. B.

AU - Lindén, J.

AU - Karppinen, M.

AU - Yamauchi, H.

PY - 2002/3

Y1 - 2002/3

N2 - The presently prepared FeSr2YCu2Oz (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.

AB - The presently prepared FeSr2YCu2Oz (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.

KW - Fe-1212

KW - Mössbauer spectroscopy

KW - Neutron diffraction

UR - https://www.scopus.com/pages/publications/0036503460

U2 - 10.1016/S0921-4526(01)01161-9

DO - 10.1016/S0921-4526(01)01161-9

M3 - Conference article

AN - SCOPUS:0036503460

SN - 0921-4526

VL - 312-313

SP - 62

EP - 64

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

Y2 - 6 August 2002 through 6 August 2002

ER -