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Volumn 324, Issue 5932, 2009, Pages 1306-1309

Natural quasicrystals

Author keywords

[No Author keywords available]

Indexed keywords

ALLOY; ALUMINUM; COPPER; IRON; MINERAL;

EID: 66749153327     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1170827     Document Type: Article
Times cited : (271)

References (20)
  • 5
    • 0002708778 scopus 로고
    • D. DiVincenzo, P. J. Steinhardt, Eds. World Scientific, Singapore
    • P. A. Bancel, Quasicrystals: The State of the Art, D. DiVincenzo, P. J. Steinhardt, Eds. (World Scientific, Singapore, 1991), pp. 17-56.
    • (1991) Quasicrystals: the State of the Art , pp. 17-56
    • Bancel, P.A.1
  • 11
    • 66749085071 scopus 로고    scopus 로고
    • The instrument was a Zeiss-EVO MA15 scanning electron microscope coupled with an Oxford INCA250 energy-dispersive spectrometer, operated with 25-kV accelerating voltage, 500-pA probe current, 2500 counts per second as average count rate on the whole spectrum, and counting time of 100 s. Samples were sputtered with 30-nm-thick carbon film.
    • The instrument was a Zeiss-EVO MA15 scanning electron microscope coupled with an Oxford INCA250 energy-dispersive spectrometer, operated with 25-kV accelerating voltage, 500-pA probe current, 2500 counts per second as average count rate on the whole spectrum, and counting time of 100 s. Samples were sputtered with 30-nm-thick carbon film.
  • 12
    • 66749092978 scopus 로고    scopus 로고
    • The instrument was a JEOL JXA-8600 electron microprobe, using a 20-kV accelerating voltage; 40-nA beam current; 30-s counting time; and Al-Kα, Cu-Kα, and Fe-Kα lines.
    • The instrument was a JEOL JXA-8600 electron microprobe, using a 20-kV accelerating voltage; 40-nA beam current; 30-s counting time; and Al-Kα, Cu-Kα, and Fe-Kα lines.
  • 14
    • 66749184136 scopus 로고    scopus 로고
    • The instrument was an Oxford Diffraction Excalibur PX Ultra diffractometer with a 165-mm diagonal Onyx charge-coupled device detector at 2.5:1 demagnification. The program Crysalis RED (Oxford Diffraction 2006) was used to convert the observed diffraction rings into a conventional XRD pattern.
    • The instrument was an Oxford Diffraction Excalibur PX Ultra diffractometer with a 165-mm diagonal Onyx charge-coupled device detector at 2.5:1 demagnification. The program Crysalis RED (Oxford Diffraction 2006) was used to convert the observed diffraction rings into a conventional XRD pattern.
  • 16
    • 66749120750 scopus 로고    scopus 로고
    • -7 torr; the electron beam size ranged from 50 nm to 0.3 μm.
    • -7 torr; the electron beam size ranged from 50 nm to 0.3 μm.
  • 20
    • 66749083305 scopus 로고    scopus 로고
    • note
    • We are indebted to L. Hollister and G. MacPherson for their critical examination of the results, especially regarding the issue of natural origin. We also thank P. Bonazzi, K. Deffeyes, S. Menchetti, and P. Spry for useful discussions and S. Bambi at the Museo di Storia Naturale for the photograph of the original sample in Fig. 1A. L.B. thanks the Ministerio dell'lstruzione dell'Università e della Ricerca Programma di Ricerca Nazionale 2007 project "Complexity in minerals: modulation, phase transition, structural disorder," issued to S. Menchetti. This work was supported in part by U.S. Department of Energy grant DE-FG02-91ER40671 (P.J.S.), the NSF MRSEC program through New York University (grant DMR-0820341; P.J.S.), the Princeton Center for Complex Materials (grant DMR-0819860; N.Y.), and the New Jersey Commission of Science and Technology (N.Y.).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.