Inorganic Solid Phases

La_7/4Sr_1/4NiO₄ (SrLaNiO₄ rt, T = 300 K) Crystal Structure

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General Information

Phase Label(s): SrLaNiO₄ rt
Structure Class(es): Ruddlesden-Popper phase, high-T_c cuprate family
Classification by Properties: antiferromagnet AFM, metal, nonmetal, semiconductor, spin glass
Mineral Name(s): –
Pearson Symbol: tI14
Space Group: 139
Phase Prototype: K₂NiF₄
Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; U.S.A. Illinois, Argonne National Laboratory, Intense Pulsed Neutron Source IPNS, SEPD (determination of structural parameters), neutrons, time-of-flight (determination of cell and structural parameters), T = 300 K (determination of cell and structural parameters)
Phase Class(es): –
Compound Class(es): oxide
Interpretation Detail(s): complete structure determined; composition dependence studied; temperature dependence studied, Rietveld refinement, multiphase, R_P = 0.0429; wR_P = 0.0634
Sample Detail(s): sample prepared from La₂O₃, SrCO₃, NiO, iodometric titration; O content analyzed; amounts of NiO (2 wt.%), powder (determination of cell and structural parameters)

Substance Summary

Standard Formula: Sr_0.25La_1.75NiO₄
Alphabetic Formula: La_1.75NiO₄Sr_0.25
Published Formula: La_7/4Sr_1/4NiO₄
Refined Formula: La_1.75NiO₄Sr_0.25
Wyckoff Sequence: 139,e²ca
Z Formula Units: 2
Density: ρ = 6.90 Mg·m⁻³

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Crystallographic Data

Cell Parameters

	Published Data	Standardized Data
	Published Data	Unit Cell	Niggli-Reduced Cell
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a
b
c
α
β
γ
a/b
b/c
c/a
V

Atom Coordinates

Standardized

Site	Element	Wyckoff Symbol	Symmetry	X	Y	Z	Occupation	Co-ord. No.	Atomic Env.
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Published

Site	Element	Wyckoff Symbol	Symmetry	X	Y	Z	Occupation
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Displacement Parameters

Isotropic

Site	Published U [nm²]	Type	Computed B_eq [nm²]
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Anisotropic

Site	U₁₁ [nm²]	U₂₂ [nm²]	U₃₃ [nm²]	U₁₂ [nm²]	U₁₃ [nm²]	U₂₃ [nm²]
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Experimental Details

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Reference

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3D Interactive Structure

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About this content

Database name

PAULING FILE Multinaries Edition – 2012

Dataset ID

sd_1924904

Copyright

©Springer & Material Phases Data System (MPDS), Switzerland & National Institute for Materials Science (NIMS), Japan, 2016

Chief Editor

Pierre Villars, Material Phases Data System (MPDS), CH-6354 Vitznau, Switzerland

villars.mpds@bluewin.ch

Credits

SpringerMaterials Release 2016.

Project Coordinator: Shuichi Iwata

Section-Editor: Karin Cenzual (Crystal Structures)

Cite this content

Pierre Villars (Chief Editor), PAULING FILE in: Inorganic Solid Phases, SpringerMaterials (online database), Springer, Heidelberg (ed.) SpringerMaterials La7/4Sr1/4NiO4 (SrLaNiO4 rt, T = 300 K) Crystal Structure sd_1924904 (Springer-Verlag GmbH, Heidelberg, © 2016)

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