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Volumn 319, Issue 5869, 2008, Pages 1506-1509

Superconductivity in hydrogen dominant materials: Silane

Author keywords

[No Author keywords available]

Indexed keywords

ALLOY; HYDROGEN; SILANE;

EID: 40849139337     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1153282     Document Type: Article
Times cited : (389)

References (26)
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    • R. P. Fournier, R. Savoie, N. D. The, R. Belzile, A. Cabana, Can. J. Chem. 50, 35 (1972).
  • 19
    • 40849114034 scopus 로고    scopus 로고
    • It is accompanied by a large drop of which in turn promotes a uniform pressure over the sample, as evidenced from the sharpening of the high-frequency edge of a Raman spectrum from a diamond anvil (Fig. 1).
    • It is accompanied by a large drop of volume, which in turn promotes a uniform pressure over the sample, as evidenced from the sharpening of the high-frequency edge of a Raman spectrum from a diamond anvil (Fig. 1).
  • 20
    • 40849114032 scopus 로고    scopus 로고
    • Materials and methods are available as supporting material on Science Online.
    • Materials and methods are available as supporting material on Science Online.
  • 21
    • 40849098457 scopus 로고    scopus 로고
    • Although for symmetry reasons, H atoms in the tetrahedral interstices occupy centers of the cavities, there is some freedom in the choice of z coordinates of H atoms in the octahedral cavities. We have chosen the z coordinates for all positions in such a way that all H atoms are located at equal distances from surrounding Si atoms (Fig. 3C, This arrangement of H atoms corresponds to P63/mmc space group. However, because of the mentioned uncertainty of the coordinates of H atoms, further on we refer to this phase as the lowest consistent with hcp structure P63 symmetry, with Si atoms in the 2b positions (1/3, 2/3, 0) and H atoms in the positions 2a (0, 0, 0.131, 2a (0, 0, 0.369, 2b (2/3, 1/3, 0.131, and 2b 1/3, 2/3, 0.369, because H atoms occupy all interstices of hcp structure, they are forced to conform to at least this symmetry
    • 3 symmetry, with Si atoms in the 2b positions (1/3, 2/3, 0) and H atoms in the positions 2a (0, 0, 0.131), 2a (0, 0, 0.369), 2b (2/3, 1/3, 0.131), and 2b (1/3, 2/3, 0.369) (because H atoms occupy all interstices of hcp structure, they are forced to conform to at least this symmetry).
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    • 3 structure.
    • 3 structure.
  • 23
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    • P. Loubeyre et al., Nature 383, 702 (1996).
    • (1996) Nature , vol.383 , pp. 702
    • Loubeyre, P.1
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    • S. J. Duclos, Y. K. Vohra, A. L. Ruoff, Phys. Rev. B 41, 12021 (1990).
    • S. J. Duclos, Y. K. Vohra, A. L. Ruoff, Phys. Rev. B 41, 12021 (1990).
  • 26
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    • We are grateful to A. Gavriliuk and V. Prakapenka for help in x-ray diffraction measurements at station Sector 13 Insertion Device Beamline (13ID-D) of the GeoSoilEnviro group of the Consortium for Advanced Radiation Sources (GSECARS) at the Advanced Photon Source under grant GUP7569 and GUP8324. We thank R. Boehler, Y. A. Freiman, I. Goncharenko, and V. Hillgren for fruitful discussions. Deutsche Forschungsgemeinschaft (DFG) grant ER 539/1-1 provided partial financial support
    • We are grateful to A. Gavriliuk and V. Prakapenka for help in x-ray diffraction measurements at station Sector 13 Insertion Device Beamline (13ID-D) of the GeoSoilEnviro group of the Consortium for Advanced Radiation Sources (GSECARS) at the Advanced Photon Source under grant GUP7569 and GUP8324. We thank R. Boehler, Y. A. Freiman, I. Goncharenko, and V. Hillgren for fruitful discussions. Deutsche Forschungsgemeinschaft (DFG) grant ER 539/1-1 provided partial financial support.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.