Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Georgii G. Samsonidze"'
Autor:
Mildred S. Dresselhaus, Rodrigo B. Capaz, Eduardo B. Barros, Georgii G. Samsonidze, Gene Dresselhaus, Antonio G. Souza Filho, Ado Jorio, Josué Mendes Filho
Publikováno v:
Physics Reports. 431:261-302
In this work we review the basic properties of carbon nanotubes from the standpoint of group theory. The zone folding scheme is reviewed in the light of the helical symmetry of the nanotube. The group theory for chiral and achiral nanotubes is review
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ae9478d17972f9a8a7e84224b8f3b0c
https://doi.org/10.1016/j.physrep.2006.05.007
https://doi.org/10.1016/j.physrep.2006.05.007
Autor:
Ming Zheng, Michael S. Strano, Paul W. Barone, Georgii G. Samsonidze, Bruce A. Diner, A. P. B. Santos, G. Bibiana Onoa, Dennis J. Walls, Mildred S. Dresselhaus, E. D. Semke, Anand Jagota, Monica L. Usrey, Robert S. Mclean, S. Grace Chou
Publikováno v:
Science. 302:1545-1548
Wrapping of carbon nanotubes (CNTs) by single-stranded DNA (ssDNA) was found to be sequence-dependent. A systematic search of the ssDNA library selected a sequence d(GT)n, n = 10 to 45 that self-assembles into a helical structure around individual na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bc2d0e1d3b4e10d9f756844b0378be0
https://doi.org/10.1126/science.1091911
https://doi.org/10.1126/science.1091911
Autor:
Steven G. Louie, Antonio G. Souza Filho, Mildred S. Dresselhaus, Catalin D. Spataru, Rodrigo B. Capaz, Ado Jorio, Gene Dresselhaus, Eduardo B. Barros, Sohrab Ismail-Beigi, Georgii G. Samsonidze
Publikováno v:
Repositório Institucional do INMETRO
Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO)
instacron:INMETRO
Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO)
instacron:INMETRO
Recent optical absorption/emission experiments showed that the lower energy optical transitions in carbon nanotubes are excitonic in nature, as predicted by theory. These experiments were based on the symmetry aspects of free electron-hole states and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fa65090bf49a84844ef305d7be9ecb9
Autor:
Georgii G. Samsonidze, Hyungbin Son, Riichiro Saito, Gene Dresselhaus, Eduardo B. Barros, Mildred S. Dresselhaus
Publikováno v:
MRS Proceedings. 963
The electron-phonon coupling in two-dimensional graphite (graphene sheet) and metallic single-wall carbon nanotubes (SWNTs) is analyzed. In the graphene sheet the G-band phonon mode induces oscillations of the Fermi points, while the G′-band phonon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84b7a9e283fdf2d95f27e05e8d05172d
https://doi.org/10.1557/proc-0963-q01-06
https://doi.org/10.1557/proc-0963-q01-06
Autor:
Apparao M. Rao, Alexander Grüneis, Gilberto Medeiros-Ribeiro, Georgii G. Samsonidze, Riichiro Saito, Shin Grace Chou, Ado Jorio, Mauricio Souza, Marcos A. Pimenta, Bernardo R. A. Neves, Mildred S. Dresselhaus, Gene Dresselhaus, Luiz Gustavo Cançado, Cristiano Fantini
Publikováno v:
MRS Proceedings. 858
The use of resonance Raman spectroscopy (RRS) to study and characterize single wall carbon nanotubes (SWNTs) is discussed, focusing on preliminary efforts for the development of the RRS to characterize defects in SWNTs. The disorder-induced D-band, d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::492445b27b62f7eab5e8f1707015d89a
https://doi.org/10.1557/proc-858-hh11.2
https://doi.org/10.1557/proc-858-hh11.2
Autor:
Georgii G. Samsonidze, Alexander Grüneis, Mildred S. Dresselhaus, Jie Jiang, Ado Jorio, Riichiro Saito, Shin Grace Chou, Naoki Kobayashi, Gene Dresselhaus
Publikováno v:
MRS Proceedings. 858
Optical spectroscopy characterization of carbon nanotube samples requires accurate determination of their band structure and exciton binding energies. In this paper, we present a non-orthogonal density-functional based tight-binding calculation for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19355afc4ef017629b3ccc3107bda3ed
https://doi.org/10.1557/proc-858-hh7.2
https://doi.org/10.1557/proc-858-hh7.2
Characterization of nanographite and carbon nanotubes by polarization dependent optical spectroscopy
Autor:
Ado Jorio, Gene Dresselhaus, Riichiro Saito, Mildred S. Dresselhaus, Alexander Grüneis, Georgii G. Samsonidze, Marcos A. Pimenta, Antonio G. Souza Filho
Publikováno v:
MRS Proceedings. 737
The optical absorption for ? electrons as a function of the electron wavevector k is investigated by first order perturbation theory in graphite and single wall carbon nanotubes (SWNTs). The matrix element connecting two states in the valence and con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39dbd024945bf68e3eb974fd2549bb96
https://doi.org/10.1557/proc-737-f3.47
https://doi.org/10.1557/proc-737-f3.47
Autor:
Alexander Grüneis, Riichiro Saito, Georgii G. Samsonidze, Antonio G. Souza Filho, Ado Jorio, Mildred S. Dresselhaus, Gene Dresselhaus, Marcos A. Pimenta
Publikováno v:
MRS Proceedings. 737
The possible semiconducting device use of single wall carbon nanotubes (SWNTs) requires a technique for the determination of the exact structure of the nanotubes assembled in the device configuration. Raman spectroscopy has been established as a prec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd256fb3a5568aae16157f7e1098b5c4
https://doi.org/10.1557/proc-737-f8.10
https://doi.org/10.1557/proc-737-f8.10
Autor:
G. G. Zegrya, Georgii G. Samsonidze
Publikováno v:
Physical Review B. 63
Auger process involving two electrons from the conduction band and a heavy hole from the valence band in semiconductor heterostructures with quantum wells is investigated for the case of a magnetic field applied normal to heteroboundaries. It is show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f99a274e12657d8fdb4c521f3cbb5302
https://doi.org/10.1103/physrevb.63.075317
https://doi.org/10.1103/physrevb.63.075317
Autor:
Hyungbin Son, Jing Kong, Xiaojie Duan, Zhongfan Liu, Jin Zhang, Georgii G. Samsonidze, Mildred S. Dresselhaus, Yingying Zhang
Publikováno v:
Applied Physics Letters. 90:253113
Axial strain is introduced into individual single wall carbon nanotubes (SWCNTs) suspended from a trench-containing Si∕SiO2 substrate by employing the van der Waals interaction between the SWCNT and the substrate. Resonance Raman spectroscopy is us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08f742e454faf1636947dc431b7ce9ca
https://doi.org/10.1063/1.2749870
https://doi.org/10.1063/1.2749870