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  Germanium Dumbbells in a New Superconducting Modification of BaGe3

Castillo, R., Baranov, A. I., Burkhardt, U., Cardoso-Gil, R., Schnelle, W., Bobnar, M., et al. (2016). Germanium Dumbbells in a New Superconducting Modification of BaGe3. Inorganic Chemistry, 55(9), 4498-4503. doi:10.1021/acs.inorgchem.6b00299.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-F846-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-4A1C-E
Genre: Journal Article

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 Creators:
Castillo, Rodrigo1, Author              
Baranov, Alexey I.1, Author              
Burkhardt, Ulrich2, Author              
Cardoso-Gil, Raul3, Author              
Schnelle, Walter4, Author              
Bobnar, Matej1, Author              
Schwarz, Ulrich5, Author              
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863422              
3Raul Cardoso, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863420              
4Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
5Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863423              

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 Abstract: We report the high-pressure high-temperature synthesis (P = 15 GPa, T = 1300 K) of BaGe3(tI32) adopting a CaGe3 -type crystal structure. Bonding analysis reveals layers of covalently bonded germanium dumbbells being involved in multicenter Ba-Ge interactions. Physical measurements evidence metal-type electrical conductivity and a transition to a superconducting state at 6.5 K. Chemical bonding and physical properties of the new modification are discussed in comparison to the earlier described hexagonal form BaGe3(hP8) with a columnar arrangement of Ge3 triangles.

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Language(s): eng - English
 Dates: 2016-05-022016-05-02
 Publication Status: Published in print
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Title: Inorganic Chemistry
  Abbreviation : Inorg. Chem.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 55 (9) Sequence Number: - Start / End Page: 4498 - 4503 Identifier: ISSN: 0020-1669
CoNE: /journals/resource/0020-1669