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20 Nov 2006: DFTcalculations are done with the gradient corrected functionalof Ref. [24]. We use plane waves (40 Ry cutoff ) andpseudopotential approaches [25]. ... 24] J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev.

27 Nov 2006: Fig. 2b shows the G peakdispersion of HCA(t)a-C:N films against N content.Here the G dispersion decreases from 0.24 to 0.1cm ynm, with increasing N ... b). This can be understood if we consider the crosssectional structure of ta-C filmsw13,24,25x.

13 Nov 2006: corresponding bulkmaterial.24 However, an increasing temperature softens theE2g phonons,25 whereas we observe a hardening of the Ramanline in the nanotube-rich areas, Figure 3a. ... 24) Piscanec, S.; Cantoro, M.; Ferrari, A. C.; Zapien, J. A.; Lifshitz, Y

13 Nov 2006: like,thick CNFs at temperatures as low as 200 C [24]. ... Phys. 44 (2005) 1558. [24] M. Cantoro, S. Hofmann, et al.

13 Nov 2006: Nominally sub-eutectic NW syn-thesis using Au as catalyst has been achieved for severalsemiconductor materials, including Ge [22], InP [23], andZnSe [24]. ... 5, 761 (2005)24 A. Colli, S. Hofmann, A.C. Ferrari, C. Ducati, F.

13 Nov 2006: 2Cambridge University, Engineering Department, 9 JJ Thompson Avenue, Cambridge CB3 0FA, United KingdomReceived 29 August 2005; revised manuscript received 24 February 2006; published 25 April 2006. ... S. Dresselhaus, Phys. Rev. B 71,045417 2005. 24 P. B.

28 Nov 2006: F. 04510 MexicoReceived 12 June 2002; revised manuscript received 24 January 2003; published 9 April 2003! ... matic groups. TheG peak position varies roughly linearlwith excitation wavelength.24 Figure 17b!

6 Dec 2006: 85 (av.) 31.4 (av.) 3.24 63.5ta-C:H Homog. 70 28.4 2.35 70 6 30ta-C:H Homog 70 28.4 2.35 43 8.4 ... cm3and a internal layer 63.5 nm thick, with density of3.24 g/cm3[ 12].

14 Dec 2006: Barborini et al.r Chemical Physics Letters 300 1999 633–638 637. w xcoordination 24,25.

11 Dec 2006: Fisica and Unitaa INFM, Politecnico di Torino, Corso Duca degli Abruzzi 24, I-10129 Torino, Italyb Dip.