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Structural properti...
Structural properties and superconductivity in the ternary intermetallic compoundsMAB (M=Ca, Sr, Ba; A=Al, Ga, In; B=Si, Ge, Sn)
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Evans, Michael J. (författare)
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Wu, Yang (författare)
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- Kranak, Verina F. (författare)
- Arizona State University, USA
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Newman, N. (författare)
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Reller, Armin (författare)
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Garcia-Garcia, F. Javier (författare)
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- Häussermann, Ulrich (författare)
- Arizona State University, USA
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Physical Review B. - 2469-9950 .- 2469-9969. ; 80
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The ternary intermetallic compounds MAB=CaAlSi, SrAlSi, BaAlSi, CaGaSi, SrGaSi, BaGaSi, SrAlGe, BaAlGe, CaGaGe, SrGaGe, BaGaGe, BaInGe, BaAlSn, CaGaSn, SrGaSn, and BaGaSn have been prepared by arc-melting stoichiometric elemental mixtures and structurally characterized by a combination of x-ray powder and electron diffraction. They crystallize as variants of the simple hexagonal AlB2 structure type where trivalent and tetravalent A- and B-type atoms, respectively, form commonly a planar hexagon layer, and structural variations arise from A/B ordering and/or puckering of hexagon layers. The silicides (B=Si) were previously investigated for their superconducting properties. By dc magnetization measurements it is demonstrated that also the germanides SrAlGe, BaAlGe, SrGaGe, and BaGaGe and the stannide BaAlSn are superconductors above 2 K.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- Inorganic Chemistry
- oorganisk kemi
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