The structure and properties of an unusual new nickel(III) oxide: YSr[sub 5]Ni[sub 3]O[sub 11]

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Journal of Solid State Chemistry; (United States)

DOI:https://doi.org/10.1006/jssc.1993.1217· OSTI ID:5856178

James, M; Attfield, J P ^[1]

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1. Univ. of Cambridge (United Kingdom)

An investigation of the system Y[sub 2[minus]x]Sr[sub x]NiO[sub 4[minus][delta]] has shown that a stable phase exists only at x = 1.67 between 1,100 and 1,150[degrees]C. Thermogravimetric analysis gives the oxygen deficiency as [delta] = 0.33(1), showing that the phase is a stoichiometric nickel(III) oxide, YSr[sub 5]Ni[sub 3]O[sub 11] (Y[sub 0.33]Sr[sub 1.67]NiO[sub 3.67]). Rietveld refinement using powder X-ray diffraction data confirms that YSr[sub 5]Ni[sub 3]O[sub 11] adopts the tetragonal K[sub 2]NiF[sub 4] (T-type) structure (I4/mmm, Z = 2/3, a = 3.7762(1), c = 12.3011(4) [angstrom], R[sub wp] = 3.9%). Independent refinement of the oxygen site occupancies reveals that the oxygen vacancies are present in the nickel oxide planes. Magnetic susceptibility data for YSr[sub 5]Ni[sub 3]O[sub 11] at 5-350 K show Curie-Weiss behavior characteristic of low spin Ni[sup 3+] with [mu][sub eff] = 1.76 and [Theta] = [minus]10.8 K. Four-probe dc electronic conductivity measurements show that the material is a semiconductor between 7 and 300 K. These data are well fitted by a two-dimensional variable range hopping model. 22 refs., 4 figs., 3 tabs.

• OSTI ID: 5856178
• Journal Information: Journal of Solid State Chemistry; (United States), Journal Name: Journal of Solid State Chemistry; (United States) Vol. 105:1; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANGULAR MOMENTUM
CHALCOGENIDES
CHEMICAL ANALYSIS
COHERENT SCATTERING
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CURIE-WEISS LAW
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GRAVIMETRIC ANALYSIS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATERIALS
NICKEL COMPOUNDS
NICKEL OXIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
POINT DEFECTS
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
SEMICONDUCTOR MATERIALS
SPIN
STOICHIOMETRY
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TETRAGONAL LATTICES
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPOUNDS
VACANCIES
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES