DOI: 10.1073/pnas.0710928105. High-pressure synthesis of the cubic perovskite BaRuO <sub>3</sub> and evolution of ferromagnetism in ARuO <sub>3</sub> (A = Ca, Sr, Ba) ruthenates

High-pressure synthesis of the cubic perovskite BaRuO 3 and evolution of ferromagnetism in ARuO 3 (A = Ca, Sr, Ba) ruthenates

10.1073/pnas.0710928105

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

The cubic perovskite BaRuO 3 has been synthesized under 18 GPa at 1,000°C. Rietveld refinement indicates that the new compound has a stretched Ru–O bond. The cubic perovskite BaRuO 3 remains metallic to 4 K and exhibits a ferromagnetic transition at T c = 60 K, which is significantly lower than the T c ≈ 160 K for SrRuO 3 . The availability of cubic perovskite BaRuO 3 not only makes it possible to map out the evolution of magnetism in the whole series of ARuO 3 (A = Ca, Sr, Ba) as a function of the ionic size of the A-site r A, but also completes the polytypes of BaRuO 3 . Extension of the plot of T c versus r A in perovskites ARuO 3 (A = Ca, Sr, Ba) shows that T c does not increase as the cubic structure is approached, but has a maximum for orthorhombic SrRuO 3 . Suppressing T c by Ca and Ba doping in SrRuO 3 is distinguished by sharply different magnetic susceptibilities χ( T ) of the paramagnetic phase. This distinction has been interpreted in the context of a Griffiths' phase on the (Ca Sr)RuO 3 side and bandwidth broadening on the (Sr,Ba)RuO 3 side.

Bibliography

Jin, C.-Q., Zhou, J.-S., Goodenough, J. B., Liu, Q. Q., Zhao, J. G., Yang, L. X., Yu, Y., Yu, R. C., Katsura, T., Shatskiy, A., & Ito, E. (2008). High-pressure synthesis of the cubic perovskite BaRuO 3 and evolution of ferromagnetism in ARuO 3 (A = Ca, Sr, Ba) ruthenates. Proceedings of the National Academy of Sciences, 105(20), 7115â7119.

Authors 11

C.-Q. Jin (first)
J.-S. Zhou (additional)
J. B. Goodenough (additional)
Q. Q. Liu (additional)
J. G. Zhao (additional)
L. X. Yang (additional)
Y. Yu (additional)
R. C. Yu (additional)
T. Katsura (additional)
A. Shatskiy (additional)
E. Ito (additional)

References 33 Referenced 178

10.1021/cm980276u
JB Goodenough, JM Longo, Crystallographic and magnetic properties of perovskite and perovskite related compounds. Landolt-Börnstein Numerical Data and Functional Relationships in Science and Technologym, eds K-H Hellwege, AM Hellwege (Springer, Berlin) Vol III/4, 126–314 (1970). / Landolt-Börnstein Numerical Data and Functional Relationships in Science and Technologym by Goodenough JB (1970)
10.1016/B978-0-12-313350-2.50007-3
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10.1103/PhysRevB.63.024402
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RB Stinchcombe Phase Transition and Critical Phenomena. eds C. Domb J.L. Lebowitz (Academic London) Vol 7 151–183 (1983).
10.1039/F29797501193
10.1103/PhysRevB.58.R579

Dates

Type	When
Created	17 years, 3 months ago (May 14, 2008, 9:10 p.m.)
Deposited	3 years, 4 months ago (April 12, 2022, 4:11 p.m.)
Indexed	5 days, 21 hours ago (Aug. 23, 2025, 9:49 p.m.)
Issued	17 years, 3 months ago (May 20, 2008)
Published	17 years, 3 months ago (May 20, 2008)
Published Online	17 years, 3 months ago (May 20, 2008)
Published Print	17 years, 3 months ago (May 20, 2008)

Funders 0

None

BibTeX

@article{Jin_2008, title={High-pressure synthesis of the cubic perovskite BaRuO 3 and evolution of ferromagnetism in ARuO 3 (A = Ca, Sr, Ba) ruthenates}, volume={105}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0710928105}, DOI={10.1073/pnas.0710928105}, number={20}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Jin, C.-Q. and Zhou, J.-S. and Goodenough, J. B. and Liu, Q. Q. and Zhao, J. G. and Yang, L. X. and Yu, Y. and Yu, R. C. and Katsura, T. and Shatskiy, A. and Ito, E.}, year={2008}, month=may, pages={7115–7119} }

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  "abstract": "<jats:p>\n            The cubic perovskite BaRuO\n            <jats:sub>3</jats:sub>\n            has been synthesized under 18 GPa at 1,000\u00b0C. Rietveld refinement indicates that the new compound has a stretched Ru\u2013O bond. The cubic perovskite BaRuO\n            <jats:sub>3</jats:sub>\n            remains metallic to 4 K and exhibits a ferromagnetic transition at\n            <jats:italic>\n              T\n              <jats:sub>c</jats:sub>\n            </jats:italic>\n            = 60 K, which is significantly lower than the\n            <jats:italic>\n              T\n              <jats:sub>c</jats:sub>\n            </jats:italic>\n            \u2248 160 K for SrRuO\n            <jats:sub>3</jats:sub>\n            . The availability of cubic perovskite BaRuO\n            <jats:sub>3</jats:sub>\n            not only makes it possible to map out the evolution of magnetism in the whole series of ARuO\n            <jats:sub>3</jats:sub>\n            (A = Ca, Sr, Ba) as a function of the ionic size of the A-site\n            <jats:italic>r</jats:italic>\n            <jats:sub>A,</jats:sub>\n            but also completes the polytypes of BaRuO\n            <jats:sub>3</jats:sub>\n            . Extension of the plot of\n            <jats:italic>\n              T\n              <jats:sub>c</jats:sub>\n            </jats:italic>\n            versus\n            <jats:italic>r</jats:italic>\n            <jats:sub>A</jats:sub>\n            in perovskites ARuO\n            <jats:sub>3</jats:sub>\n            (A = Ca, Sr, Ba) shows that\n            <jats:italic>\n              T\n              <jats:sub>c</jats:sub>\n            </jats:italic>\n            does not increase as the cubic structure is approached, but has a maximum for orthorhombic SrRuO\n            <jats:sub>3</jats:sub>\n            . Suppressing\n            <jats:italic>\n              T\n              <jats:sub>c</jats:sub>\n            </jats:italic>\n            by Ca and Ba doping in SrRuO\n            <jats:sub>3</jats:sub>\n            is distinguished by sharply different magnetic susceptibilities \u03c7(\n            <jats:italic>T</jats:italic>\n            ) of the paramagnetic phase. This distinction has been interpreted in the context of a Griffiths' phase on the (Ca Sr)RuO\n            <jats:sub>3</jats:sub>\n            side and bandwidth broadening on the (Sr,Ba)RuO\n            <jats:sub>3</jats:sub>\n            side.\n          </jats:p>",
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