Synthesis and characterization of Sr 3FeMoO 6.88:: An oxygen-deficient 2D analogue of the double perovskite Sr 2FeMoO 6

Gabriel M. Veith; Martha Greenblatt; Mark Croft; K. V. Ramanujachary; J. Hattrick-Simpers; Samuel E. Lofland; Israel Nowik

doi:10.1021/cm048839r

Synthesis and characterization of Sr ₃FeMoO _6.88:: An oxygen-deficient 2D analogue of the double perovskite Sr ₂FeMoO ₆

Gabriel M. Veith
, Martha Greenblatt
, Mark Croft
, K. V. Ramanujachary
, J. Hattrick-Simpers
, Samuel E. Lofland
, Israel Nowik

Energy Storage & Conversion

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

23 Scopus citations

Abstract

We have prepared Sr ₃FeMoO _6.88(1), an oxygen-deficient two-dimensional analogue of the double perovskite Sr ₂FeMoO ₆, and have investigated its structure and physical properties. According to powder X-ray and neutron diffraction data, Sr ₃FeMoO _6.88 adopts the tetragonal n = 2 Ruddlesden-Popper structure (space group 14/mmm) with a completely disordered B-cation distribution and oxygen vacancies occurring preferentially at the axial 01 sites between the perovskite layers. X-ray absorption near-edge spectroscopy and Mössbauer data are consistent with trivalent Fe and mixed (4+/5+) Mo oxidation state. The compound is semiconducting, showing an intrinsic magnetic transition at ∼85 K and an additional upturn in the magnetic susceptibility at ∼270 K, the latter is associated with intergrowth defects. An appreciable magnetoresistance, reaching the value of ∼-15% at 5 K and 5 T is also observed

Original language	English
Pages (from-to)	2562-2567
Number of pages	6
Journal	Chemistry of Materials
Volume	17
Issue number	10
DOIs	https://doi.org/10.1021/cm048839r
State	Published - May 17 2005

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title = "Synthesis and characterization of Sr 3FeMoO 6.88:: An oxygen-deficient 2D analogue of the double perovskite Sr 2FeMoO 6",

abstract = "We have prepared Sr 3FeMoO 6.88(1), an oxygen-deficient two-dimensional analogue of the double perovskite Sr 2FeMoO 6, and have investigated its structure and physical properties. According to powder X-ray and neutron diffraction data, Sr 3FeMoO 6.88 adopts the tetragonal n = 2 Ruddlesden-Popper structure (space group 14/mmm) with a completely disordered B-cation distribution and oxygen vacancies occurring preferentially at the axial 01 sites between the perovskite layers. X-ray absorption near-edge spectroscopy and M{\"o}ssbauer data are consistent with trivalent Fe and mixed (4+/5+) Mo oxidation state. The compound is semiconducting, showing an intrinsic magnetic transition at ∼85 K and an additional upturn in the magnetic susceptibility at ∼270 K, the latter is associated with intergrowth defects. An appreciable magnetoresistance, reaching the value of ∼-15\% at 5 K and 5 T is also observed",

author = "Veith, \{Gabriel M.\} and Martha Greenblatt and Mark Croft and Ramanujachary, \{K. V.\} and J. Hattrick-Simpers and Lofland, \{Samuel E.\} and Israel Nowik",

year = "2005",

month = may,

day = "17",

doi = "10.1021/cm048839r",

language = "English",

volume = "17",

pages = "2562--2567",

journal = "Chemistry of Materials",

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publisher = "American Chemical Society",

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TY - JOUR

T1 - Synthesis and characterization of Sr 3FeMoO 6.88:

T2 - An oxygen-deficient 2D analogue of the double perovskite Sr 2FeMoO 6

AU - Veith, Gabriel M.

AU - Greenblatt, Martha

AU - Croft, Mark

AU - Ramanujachary, K. V.

AU - Hattrick-Simpers, J.

AU - Lofland, Samuel E.

AU - Nowik, Israel

PY - 2005/5/17

Y1 - 2005/5/17

N2 - We have prepared Sr 3FeMoO 6.88(1), an oxygen-deficient two-dimensional analogue of the double perovskite Sr 2FeMoO 6, and have investigated its structure and physical properties. According to powder X-ray and neutron diffraction data, Sr 3FeMoO 6.88 adopts the tetragonal n = 2 Ruddlesden-Popper structure (space group 14/mmm) with a completely disordered B-cation distribution and oxygen vacancies occurring preferentially at the axial 01 sites between the perovskite layers. X-ray absorption near-edge spectroscopy and Mössbauer data are consistent with trivalent Fe and mixed (4+/5+) Mo oxidation state. The compound is semiconducting, showing an intrinsic magnetic transition at ∼85 K and an additional upturn in the magnetic susceptibility at ∼270 K, the latter is associated with intergrowth defects. An appreciable magnetoresistance, reaching the value of ∼-15% at 5 K and 5 T is also observed

AB - We have prepared Sr 3FeMoO 6.88(1), an oxygen-deficient two-dimensional analogue of the double perovskite Sr 2FeMoO 6, and have investigated its structure and physical properties. According to powder X-ray and neutron diffraction data, Sr 3FeMoO 6.88 adopts the tetragonal n = 2 Ruddlesden-Popper structure (space group 14/mmm) with a completely disordered B-cation distribution and oxygen vacancies occurring preferentially at the axial 01 sites between the perovskite layers. X-ray absorption near-edge spectroscopy and Mössbauer data are consistent with trivalent Fe and mixed (4+/5+) Mo oxidation state. The compound is semiconducting, showing an intrinsic magnetic transition at ∼85 K and an additional upturn in the magnetic susceptibility at ∼270 K, the latter is associated with intergrowth defects. An appreciable magnetoresistance, reaching the value of ∼-15% at 5 K and 5 T is also observed

UR - https://www.scopus.com/pages/publications/19944394532

U2 - 10.1021/cm048839r

DO - 10.1021/cm048839r

M3 - Article

AN - SCOPUS:19944394532

SN - 0897-4756

VL - 17

SP - 2562

EP - 2567

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 10

ER -

Synthesis and characterization of Sr ₃FeMoO _6.88:: An oxygen-deficient 2D analogue of the double perovskite Sr ₂FeMoO ₆

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