Dumbbells of Five-Connected Silicon Atoms and Superconductivity in the Binary 
Silicides MSi3 (M = Ca, Y, Lu)

Schwarz, U.; Wosylus, A.; Rosner, H.; Schnelle, W.; Ormeci, A.; Meier, K.; Baranov, A.; Nicklas, M.; Leipe, S.; Müller, C. J.; Grin, Y.

doi:10.1021/ja3055194

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Dumbbells of Five-Connected Silicon Atoms and Superconductivity in the Binary Silicides MSi₃ (M = Ca, Y, Lu)

Schwarz, U., Wosylus, A., Rosner, H., Schnelle, W., Ormeci, A., Meier, K., et al. (2012). Dumbbells of Five-Connected Silicon Atoms and Superconductivity in the Binary Silicides MSi₃ (M = Ca, Y, Lu). Journal of the American Chemical Society, 134(33), 13558-13561. doi:10.1021/ja3055194.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0015-2067-9 Version Permalink: https://hdl.handle.net/21.11116/0000-0000-F758-7

Genre: Journal Article

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Creators:
Schwarz, U.¹, Author
Wosylus, A.², Author
Rosner, H.³, Author
Schnelle, W.⁴, Author
Ormeci, A.⁵, Author
Meier, K.⁵, Author
Baranov, A.⁵, Author
Nicklas, M.⁶, Author
Leipe, S.⁵, Author
Müller, C. J.², Author
Grin, Y.⁷, Author

Affiliations:
1Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863423
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404
3Helge Rosner, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863450
4Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441
5Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405
6Michael Nicklas, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863472
7Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413

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Abstract: The new metastable binary silicides MSi3 (M = Ca, Y, Lu) have been synthesized by high-pressure, high-temperature reactions at pressures between 12(2) and 15(2) GPa and temperatures from 900(100) to 1400(150) K. The atomic patterns comprise intricate silicon layers of condensed molecule-like Si2 dimers. The alkaline-earth element adopts the oxidation state +2, while the rare-earth and transition metals realize +3. All of the compounds exhibit BCS-type superconductivity with weak electron?phonon coupling below critical temperatures of up to 7 K.

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Language(s): eng - English

Dates: Date issued: 2012-07-30

Publication Status: Issued

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Identifiers: eDoc: 618066
DOI: 10.1021/ja3055194

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Title: Journal of the American Chemical Society

Other : J. Am. Chem. Soc.

Abbreviation : JACS

Source Genre: Journal

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Publ. Info: Washington, DC : American Chemical Society

Pages: - Volume / Issue: 134 (33) Sequence Number: - Start / End Page: 13558 - 13561 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870