Author(s): Ayuela A, Chico L, Jaskólski W
We report on first-principles calculations for metallic carbon nanotube superlattices N(12,0)∕N(6,6) with N=1–4. Although the calculated band structures show a good overall agreement with the results of the simpler tight-binding π-electron approximation, electron interaction and correlation effects strongly modify some peculiar flatbands, previously found within a tight-binding approach [W. Jaskólski and L. Chico, Phys. Rev. B 71, 155405 (2005)]. In the ab initio approach, these bands are no longer dispersionless, much closer to the Fermi level, and are always nondegenerate, in contrast to former tight-binding results.
Author(s): Yao Y, Li Q, Zhang J, Liu R, Jiao L, et al.
Author(s): Charlier JC , Blasé X, Roch S
Author(s): Ayuela A, Jaskólski W, Pelc M, Santos H, Chico L
Author(s): Jaskólski W, Pelc M
Author(s): Ouyang M, Huang JL, Cheung CL, Lieber CM
Author(s): Chico L, Crespi VH, Benedict LX, Louie SG, Cohen ML
Author(s): Lu JP
Author(s): Sánchez-Portal D, Artacho E, Soler JM, Rubio A, Ordejón P
Author(s): Brenner DW, Shenderova OA, Harrison JA, Stuart SJ, et al.
Author(s): Kumar D, Verma V, Dharamvir K
Author(s): Kumar D, Verma V, Dharamvir K, Bhatti HS
Author(s): Kumar D, Verma V, Bhatti HS, Dharamvir K
Author(s): Kumar D, Verma V, Bhatti HS, Dharamvir K
Author(s): Tersoff J
Author(s): Scarpa F, Narojczyk JW, Wojciechowski KW
Author(s): Lee WJ, Su WS