Sur les phases de type clathrate du silicium et des éléments apparentés (C, Ge, Sn) : Une approche historique

Cros, C.; Pouchard, Michel

doi:10.1016/j.crci.2009.05.004

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Cited by 35 publications

(35 citation statements)

References 191 publications

(195 reference statements)

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“…Complementary information needed for further considerations was obtained by crystal structure determination using high-resolution diffraction data of the single crystal selected from a sample with the nominal composition K 8 Li 2.67 Ge 43.33 (a = 10.7702 (1) ). Position and occupancy of Ge3 split sites Ge31 and Ge32 were resolved.…”

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confidence: 99%

A Clathrate‐I Phase with Li–Ge Framework

Liang

Böhme

Ormeci

et al. 2012

Chemistry A European J

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confidence: 99%

A Clathrate‐I Phase with Li–Ge Framework

Liang

Böhme

Ormeci

et al. 2012

Chemistry A European J

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“…Cage-like structures are particularly suited for heavy endohedral doping due to their open geometry. This is experimentally proven for other compounds, such as Si clathrates [39]. In a previous work [35], we predicted that stable p-doping could be achieved in sodalite ZnO.…”

Section: Introductionmentioning

confidence: 58%

Superconductivity in an expanded phase of ZnO: anab initiostudy

et al. 2015

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It is known that covalent semiconductors become superconducting if conveniently doped with large concentration of impurities. In this article we investigate, using ab initio methods, if the same situation is possible for an ionic, large-band gap semiconductor such as ZnO. We concentrate on the cage-like sodalite phase, with very similar electronic and phononic properties as wurtzite ZnO, but allow for endohedral doping of the cages. We find that sodalite ZnO becomes superconducting for a variety of dopants, reaching a maximum critical temperature of 7 K. This value is comparable to the transition temperatures of doped silicon clathrates, cubic silicon, and diamond.

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“…Pour les proprié té s structurales et la conductivité thermique, voir Nolas et al (2000) et Shimizu et al (2009). L'histoire et les dé veloppements ré cents des composé s type clathrate du silicium et des é lé ments de la colonne 14 ont é té relaté s par Cros & Pouchard (2009). L'é tude par diffraction é lectronique et HRTEM du clathrate I 8 Ge 40.0 Te 5.3 a é té ré alisé e par Kovnir et al (2006).…”

Section: Littérature Associéeunclassified