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 00:00:00 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), Vol. 105:1; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

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