Synthesis and properties of the double perovskites La2NiVO6, La2CoVO6, and La2CoTiO6

K. L. Holman; Q. Huang; T. Klimczuk; K. Trzebiatowski; J. W.G. Bos; E. Morosan; J. W. Lynn; R. J. Cava

doi:10.1016/j.jssc.2006.09.013

Synthesis and properties of the double perovskites La₂NiVO₆, La₂CoVO₆, and La₂CoTiO₆

K. L. Holman, Q. Huang, T. Klimczuk, K. Trzebiatowski, J. W.G. Bos, E. Morosan, J. W. Lynn, R. J. Cava

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47 Scopus citations

Abstract

The double perovskites La₂CoVO₆, La₂CoTiO₆, and La₂NiVO₆, are described. Rietveld fitting of neutron and powder X-ray diffraction data show La₂NiVO₆ and La₂CoVO₆ to have a disordered arrangement of B-cations whereas La₂CoTiO₆ shows ordering of the B-cations (with ∼5% Co/Ti inversion). Curie-Weiss fits to the linear region of the 1/χ plots reveal Weiss temperatures of -107, -34.8, and 16.3 K for La₂CoVO₆, La₂CoTiO₆, and La₂NiVO₆, respectively, and magnetic transitions are observed. La₂CoTiO₆ prepared by our method differs from material prepared by lower-temperature routes. A simple antiferromagnetic spin model is consistent with the data for La₂CoTiO₆. These compounds are semiconductors with bandgaps of 0.41 (La₂CoVO₆), 1.02 (La₂CoTiO₆) and 0.45 eV (La₂NiVO₆).

Original language	English (US)
Pages (from-to)	75-83
Number of pages	9
Journal	Journal of Solid State Chemistry
Volume	180
Issue number	1
DOIs	https://doi.org/10.1016/j.jssc.2006.09.013
State	Published - Jan 2007

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Keywords

Antiferromagnetism
Double perovskite
LaCoTiO
LaCoVO
LaNiVO
Neutron diffraction
Semiconductor

Access to Document

10.1016/j.jssc.2006.09.013

Cite this

@article{68de37960e6448c586e3489de61a2afb,

title = "Synthesis and properties of the double perovskites La2NiVO6, La2CoVO6, and La2CoTiO6",

abstract = "The double perovskites La2CoVO6, La2CoTiO6, and La2NiVO6, are described. Rietveld fitting of neutron and powder X-ray diffraction data show La2NiVO6 and La2CoVO6 to have a disordered arrangement of B-cations whereas La2CoTiO6 shows ordering of the B-cations (with ∼5% Co/Ti inversion). Curie-Weiss fits to the linear region of the 1/χ plots reveal Weiss temperatures of -107, -34.8, and 16.3 K for La2CoVO6, La2CoTiO6, and La2NiVO6, respectively, and magnetic transitions are observed. La2CoTiO6 prepared by our method differs from material prepared by lower-temperature routes. A simple antiferromagnetic spin model is consistent with the data for La2CoTiO6. These compounds are semiconductors with bandgaps of 0.41 (La2CoVO6), 1.02 (La2CoTiO6) and 0.45 eV (La2NiVO6).",

keywords = "Antiferromagnetism, Double perovskite, LaCoTiO, LaCoVO, LaNiVO, Neutron diffraction, Semiconductor",

author = "Holman, {K. L.} and Q. Huang and T. Klimczuk and K. Trzebiatowski and Bos, {J. W.G.} and E. Morosan and Lynn, {J. W.} and Cava, {R. J.}",

note = "Funding Information: This work was supported by the NSF MRSEC program, Grant DMR – 0213706. Certain commercial material and equipment are identified in this report to describe the subject adequately. Such identification does not imply recommendation or endorsement by the NIST, nor does it imply that the materials and equipment identified is necessarily the best available for the purpose.",

year = "2007",

month = jan,

doi = "10.1016/j.jssc.2006.09.013",

language = "English (US)",

volume = "180",

pages = "75--83",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "1",

}

TY - JOUR

T1 - Synthesis and properties of the double perovskites La2NiVO6, La2CoVO6, and La2CoTiO6

AU - Holman, K. L.

AU - Huang, Q.

AU - Klimczuk, T.

AU - Trzebiatowski, K.

AU - Bos, J. W.G.

AU - Morosan, E.

AU - Lynn, J. W.

AU - Cava, R. J.

N1 - Funding Information: This work was supported by the NSF MRSEC program, Grant DMR – 0213706. Certain commercial material and equipment are identified in this report to describe the subject adequately. Such identification does not imply recommendation or endorsement by the NIST, nor does it imply that the materials and equipment identified is necessarily the best available for the purpose.

PY - 2007/1

Y1 - 2007/1

N2 - The double perovskites La2CoVO6, La2CoTiO6, and La2NiVO6, are described. Rietveld fitting of neutron and powder X-ray diffraction data show La2NiVO6 and La2CoVO6 to have a disordered arrangement of B-cations whereas La2CoTiO6 shows ordering of the B-cations (with ∼5% Co/Ti inversion). Curie-Weiss fits to the linear region of the 1/χ plots reveal Weiss temperatures of -107, -34.8, and 16.3 K for La2CoVO6, La2CoTiO6, and La2NiVO6, respectively, and magnetic transitions are observed. La2CoTiO6 prepared by our method differs from material prepared by lower-temperature routes. A simple antiferromagnetic spin model is consistent with the data for La2CoTiO6. These compounds are semiconductors with bandgaps of 0.41 (La2CoVO6), 1.02 (La2CoTiO6) and 0.45 eV (La2NiVO6).

AB - The double perovskites La2CoVO6, La2CoTiO6, and La2NiVO6, are described. Rietveld fitting of neutron and powder X-ray diffraction data show La2NiVO6 and La2CoVO6 to have a disordered arrangement of B-cations whereas La2CoTiO6 shows ordering of the B-cations (with ∼5% Co/Ti inversion). Curie-Weiss fits to the linear region of the 1/χ plots reveal Weiss temperatures of -107, -34.8, and 16.3 K for La2CoVO6, La2CoTiO6, and La2NiVO6, respectively, and magnetic transitions are observed. La2CoTiO6 prepared by our method differs from material prepared by lower-temperature routes. A simple antiferromagnetic spin model is consistent with the data for La2CoTiO6. These compounds are semiconductors with bandgaps of 0.41 (La2CoVO6), 1.02 (La2CoTiO6) and 0.45 eV (La2NiVO6).

KW - Antiferromagnetism

KW - Double perovskite

KW - LaCoTiO

KW - LaCoVO

KW - LaNiVO

KW - Neutron diffraction

KW - Semiconductor

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DO - 10.1016/j.jssc.2006.09.013

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AN - SCOPUS:33846193258

SN - 0022-4596

VL - 180

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EP - 83

JO - Journal of Solid State Chemistry

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