Synthesis and neutron powder diffraction structural analysis of oxidized delafossite YCuO2.5

Vasile O. Garlea; Céline Darie; Olivier Isnard; Pierre Bordet

doi:10.1016/j.solidstatesciences.2005.12.003

Synthesis and neutron powder diffraction structural analysis of oxidized delafossite YCuO_2.5

Vasile O. Garlea, Céline Darie, Olivier Isnard, Pierre Bordet

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10 Scopus citations

Abstract

We report a study of the evolution of the structure of the delafossite-derived compounds YCuO_2+δ as a function of oxygen stoichiometry. The structural details of the oxygenated material YCuO_2.5 were examined by means of high-resolution neutron powder diffraction. We confirmed that YCuO_2.5 adopts an orthorhombic superstructure ( a = sqrt(3) a_H, b = c_H, c = 2 a_H) in which the anions are located at the center of corner-sharing triangles to form undulating chains of Cu²⁺ ( s = 1 / 2), running along a-axis direction.

Original language	English
Pages (from-to)	457-461
Number of pages	5
Journal	Solid State Sciences
Volume	8
Issue number	5
DOIs	https://doi.org/10.1016/j.solidstatesciences.2005.12.003
State	Published - May 2006
Externally published	Yes

Keywords

Delafossite
Frustrated systems
Neutron diffraction
Rietveld refinement
Sawtooth lattice

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10.1016/j.solidstatesciences.2005.12.003

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title = "Synthesis and neutron powder diffraction structural analysis of oxidized delafossite YCuO2.5",

abstract = "We report a study of the evolution of the structure of the delafossite-derived compounds YCuO2+δ as a function of oxygen stoichiometry. The structural details of the oxygenated material YCuO2.5 were examined by means of high-resolution neutron powder diffraction. We confirmed that YCuO2.5 adopts an orthorhombic superstructure ( a = sqrt(3) aH, b = cH, c = 2 aH) in which the anions are located at the center of corner-sharing triangles to form undulating chains of Cu2+ ( s = 1 / 2), running along a-axis direction.",

keywords = "Delafossite, Frustrated systems, Neutron diffraction, Rietveld refinement, Sawtooth lattice",

author = "Garlea, \{Vasile O.\} and C{\'e}line Darie and Olivier Isnard and Pierre Bordet",

year = "2006",

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doi = "10.1016/j.solidstatesciences.2005.12.003",

language = "English",

volume = "8",

pages = "457--461",

journal = "Solid State Sciences",

issn = "1293-2558",

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TY - JOUR

T1 - Synthesis and neutron powder diffraction structural analysis of oxidized delafossite YCuO2.5

AU - Garlea, Vasile O.

AU - Darie, Céline

AU - Isnard, Olivier

AU - Bordet, Pierre

PY - 2006/5

Y1 - 2006/5

N2 - We report a study of the evolution of the structure of the delafossite-derived compounds YCuO2+δ as a function of oxygen stoichiometry. The structural details of the oxygenated material YCuO2.5 were examined by means of high-resolution neutron powder diffraction. We confirmed that YCuO2.5 adopts an orthorhombic superstructure ( a = sqrt(3) aH, b = cH, c = 2 aH) in which the anions are located at the center of corner-sharing triangles to form undulating chains of Cu2+ ( s = 1 / 2), running along a-axis direction.

AB - We report a study of the evolution of the structure of the delafossite-derived compounds YCuO2+δ as a function of oxygen stoichiometry. The structural details of the oxygenated material YCuO2.5 were examined by means of high-resolution neutron powder diffraction. We confirmed that YCuO2.5 adopts an orthorhombic superstructure ( a = sqrt(3) aH, b = cH, c = 2 aH) in which the anions are located at the center of corner-sharing triangles to form undulating chains of Cu2+ ( s = 1 / 2), running along a-axis direction.

KW - Delafossite

KW - Frustrated systems

KW - Neutron diffraction

KW - Rietveld refinement

KW - Sawtooth lattice

UR - https://www.scopus.com/pages/publications/33646006399

U2 - 10.1016/j.solidstatesciences.2005.12.003

DO - 10.1016/j.solidstatesciences.2005.12.003

M3 - Article

AN - SCOPUS:33646006399

SN - 1293-2558

VL - 8

SP - 457

EP - 461

JO - Solid State Sciences

JF - Solid State Sciences

IS - 5

ER -

Synthesis and neutron powder diffraction structural analysis of oxidized delafossite YCuO_2.5

Abstract

Keywords

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