Neutron-diffraction and Mossbauer-spectroscopy study of La0.6Sr0.4Fe1-xCoxO3-y (x=0, 0.5) perovskites

S. Neov; L. Dabrowski; M. Hofmann; Henricus J.M. Bouwmeester

doi:10.1007/s003390201621

Neutron-diffraction and Mossbauer-spectroscopy study of La0.6Sr0.4Fe1-xCoxO3-y (x=0, 0.5) perovskites

S. Neov
, L. Dabrowski
, M. Hofmann
, Henricus J.M. Bouwmeester

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

1 Citation (Scopus)

8 Downloads (Pure)

Abstract

The crystal and magnetic structure of La0.6Sr0.4Fe1-xCoxO3-y (x=0,0.5) perovskites was studied by neutron diffraction and Mössbauer spectroscopy. At T=2–300 K the oxides possess an oxygen-deficient, rhombohedrally distorted structure, with space group R\overline{3}c. 57Fe Mössbauer spectra below T=154 K show a regular arrangement of Fe spins, determined as a G-type antiferromagnetic structure by neutron diffraction. The mean magnetic moment at T=40 K is 1.61 μB per B-site for x=0.5, and 2.63 μB for the x=0 composition. An increase of TN and oxygen deficiency accompany the heating to 850 K. The structure of La0.6Sr0.4Fe0.5Co0.5O2.84 at 850 K is cubic with space group Pm3m.

Original language	Undefined
Pages (from-to)	S664-S666
Journal	Applied physics A: Materials science and processing
Volume	74
Issue number	1, Suppl.
DOIs	https://doi.org/10.1007/s003390201621
Publication status	Published - 2002

Keywords

IR-72249
METIS-259134

Access to Document

10.1007/s003390201621

Cite this

@article{1eab949f0526420bbaf1f8a98308f521,

title = "Neutron-diffraction and Mossbauer-spectroscopy study of La0.6Sr0.4Fe1-xCoxO3-y (x=0, 0.5) perovskites",

abstract = "The crystal and magnetic structure of La0.6Sr0.4Fe1-xCoxO3-y (x=0,0.5) perovskites was studied by neutron diffraction and M{\"o}ssbauer spectroscopy. At T=2–300 K the oxides possess an oxygen-deficient, rhombohedrally distorted structure, with space group R\textbackslash{}overline\{3\}c. 57Fe M{\"o}ssbauer spectra below T=154 K show a regular arrangement of Fe spins, determined as a G-type antiferromagnetic structure by neutron diffraction. The mean magnetic moment at T=40 K is 1.61 μB per B-site for x=0.5, and 2.63 μB for the x=0 composition. An increase of TN and oxygen deficiency accompany the heating to 850 K. The structure of La0.6Sr0.4Fe0.5Co0.5O2.84 at 850 K is cubic with space group Pm3m.",

keywords = "IR-72249, METIS-259134",

author = "S. Neov and L. Dabrowski and M. Hofmann and Bouwmeester, \{Henricus J.M.\}",

year = "2002",

doi = "10.1007/s003390201621",

language = "Undefined",

volume = "74",

pages = "S664--S666",

journal = "Applied physics A: Materials science and processing",

issn = "0947-8396",

publisher = "Springer",

number = "1, Suppl.",

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TY - JOUR

T1 - Neutron-diffraction and Mossbauer-spectroscopy study of La0.6Sr0.4Fe1-xCoxO3-y (x=0, 0.5) perovskites

AU - Neov, S.

AU - Dabrowski, L.

AU - Hofmann, M.

AU - Bouwmeester, Henricus J.M.

PY - 2002

Y1 - 2002

N2 - The crystal and magnetic structure of La0.6Sr0.4Fe1-xCoxO3-y (x=0,0.5) perovskites was studied by neutron diffraction and Mössbauer spectroscopy. At T=2–300 K the oxides possess an oxygen-deficient, rhombohedrally distorted structure, with space group R\overline{3}c. 57Fe Mössbauer spectra below T=154 K show a regular arrangement of Fe spins, determined as a G-type antiferromagnetic structure by neutron diffraction. The mean magnetic moment at T=40 K is 1.61 μB per B-site for x=0.5, and 2.63 μB for the x=0 composition. An increase of TN and oxygen deficiency accompany the heating to 850 K. The structure of La0.6Sr0.4Fe0.5Co0.5O2.84 at 850 K is cubic with space group Pm3m.

AB - The crystal and magnetic structure of La0.6Sr0.4Fe1-xCoxO3-y (x=0,0.5) perovskites was studied by neutron diffraction and Mössbauer spectroscopy. At T=2–300 K the oxides possess an oxygen-deficient, rhombohedrally distorted structure, with space group R\overline{3}c. 57Fe Mössbauer spectra below T=154 K show a regular arrangement of Fe spins, determined as a G-type antiferromagnetic structure by neutron diffraction. The mean magnetic moment at T=40 K is 1.61 μB per B-site for x=0.5, and 2.63 μB for the x=0 composition. An increase of TN and oxygen deficiency accompany the heating to 850 K. The structure of La0.6Sr0.4Fe0.5Co0.5O2.84 at 850 K is cubic with space group Pm3m.

KW - IR-72249

KW - METIS-259134

U2 - 10.1007/s003390201621

DO - 10.1007/s003390201621

M3 - Article

SN - 0947-8396

VL - 74

SP - S664-S666

JO - Applied physics A: Materials science and processing

JF - Applied physics A: Materials science and processing

IS - 1, Suppl.

ER -