Inorganic Solid Phases

La_1.75Sr_0.25Ni_1−xAl_xO₄, x= 0.3 (Sr_0.25La_1.75Ni_0.7Al_0.3O₄) Crystal Structure

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General Information

Phase Label(s): Sr_0.25La_1.75Ni_0.7Al_0.3O₄
Structure Class(es): Ruddlesden-Popper phase, high-T_c cuprate family
Classification by Properties: metal, nonmetal, semiconductor
Mineral Name(s): –
Pearson Symbol: tI14
Space Group: 139
Phase Prototype: K₂NiF₄
Measurement Detail(s): automatic diffractometer (determination of cell parameters), automatic diffractometer; Rigaku D/MAX-2550 (determination of structural parameters), X-rays, Cu Kα (determination of cell and structural parameters)
Phase Class(es): –
Compound Class(es): oxide
Interpretation Detail(s): complete structure determined, Rietveld refinement; 33 variables; 145 reflections, R_P = 0.0601; wR_P = 0.0934
Sample Detail(s): sample prepared from La₂O₃, SrCO₃, NiO, Al₂O₃, amounts of LaAlO₃ (6.84 wt.%) and La₂O₃ (2.04 wt.%), powder (determination of cell and structural parameters)

Substance Summary

Standard Formula: Sr_0.25La_1.75Ni_0.7Al_0.3O₄
Alphabetic Formula: Al_0.3La_1.75Ni_0.7O₄Sr_0.25
Published Formula: La_1.75Sr_0.25Ni_1−xAl_xO₄, x= 0.3
Refined Formula: Al_0.30La_1.75Ni_0.70O₄Sr_0.25
Wyckoff Sequence: 139,e²ca
Z Formula Units: 2
Density: ρ = 6.73 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 B [nm²]	Type	Computed B_eq [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_1824501

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 La1.75Sr0.25Ni1−xAlxO4, x= 0.3 (Sr0.25La1.75Ni0.7Al0.3O4) Crystal Structure sd_1824501 (Springer-Verlag GmbH, Heidelberg, © 2016)

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