Chirality dependent frequency shift of radial breathing mode in metallic carbon nanotubes (2008)
Sasaki, K., Saito, R., Dresselhaus, G., Dresselhaus, M. S., Farhat, H., Kong, J.
A phonon frequency shift of the radial breathing mode for metallic single wall carbon nanotubes is predicted as a function of Fermi energy. Armchair nanotubes do not show any frequency shift while...
Curvature induced optical phonon frequency shift in metallic carbon nanotubes (2008)
Sasaki, K., Saito, R., Dresselhaus, G., Dresselhaus, M. S., Farhat, H., Kong, J.
The quantum corrections to the frequencies of the $\Gamma$ point longitudinal optical (LO) and transverse optical (TO) phonon modes in carbon nanotubes are investigated theoretically. The frequency...
Chirality dependence of exciton effects in single-wall carbon nanotubes: Tight-binding model (2007)
Jiang, J, Saito, R, Samsonidze, Ge. G., Jorio, Ado, Chou, S. G., Dresselhaus, G, ...
We have studied the exciton properties of single-wall carbon nanotubes by solving the Bethe-Salpeter equation within tight-binding models. The screening effect of the pi electrons in carbon nanotubes...
Studying disorder in graphite-based systems by Raman spectroscopy (2007)
Pimenta, M. A., Dresselhaus, G, Dresselhaus, Mildred S., Cancado, L. G., Jorio, Ado, Saito, R
Raman spectroscopy has historically played an important role in the structural characterization of graphitic materials, in particular providing valuable information about defects, stacking of the...
Displacive Excitation of Coherent Phonons (2006)
Cheng, T. K., Vidal, J., Zeiger, H. J., Ippen, E. P., Dresselhaus, G.
Recently, we have shown that coherent lattice vibrations can be induced and subsequently detected in certain semimetals and semiconductors (e.g. Bi, Sb, Te, Ti2O3) via time-resolved optical...
Structural systematics in boron-doped single wall carbon nanotubes (2004)
Gai, P.L., Stephan, O., McGuire, K., Rao, A.M., Dresselhaus, M.S., Dresselhaus, G.
We report atomic level high resolution transmission electron microscopy (HRTEM), electron nanodiffraction and nano-electron energy loss spectroscopy (nano-EELS) of boron-doped carbon nanostructures...
Jorio,A., Matinaga,F. M., Righi,A., Dantas,M. S. S., Pimenta,M. A., Souza Filho,A. G., ...
We discuss how resonance micro-Raman spectroscopy can determine the electronic and structural properties of individual isolated single-wall carbon nanotubes (SWNTs) that can be further used for...
Electronic and Optical Properties and Modeling of Intercalated Graphite. (2002)
Dresselhaus,M. S., Dresselhaus,G.
Under this grant a study was carried out of the electronic and optical properties and modeling of intercalated graphite. A major contribution of this work has been the formulation of a model for the...
Electronic Energy Levels of Intermediates in the Nickel Carbonylation Reaction. (2002)
Howard,I. A., Pratt,G. W., Johnson,K. H., Dresselhaus,G.
Using the multiple scattering X-alpha method, electronic energy levels have been found self-consistently for the intermediates Ni(CO)(n), n=1,2,3 in the formation of nickel tetracarbonyl via the...
Raman Scattering from in-Plane Lattice Modes in Low-Stage Graphite-Alkali-Metal Compounds, (2002)
Eklund,P. C., Dresselhaus,G., Dresselhaus,M. S., Fischer,J. E.
Pub. in Physical Review B, v16 n8 p3330-3333. Prepared in cooperation with Pennsylvania Univ., Pa, Grant NSF-DMR76-00678.
Raman Scattering in Graphite-Lithium Intercalation Compounds, (2002)
Eklund,P. C., Dresselhaus,G., Dresselhaus,M. S., Fischer,J. E.
Prepared in cooperation with Moore School of Electrical Engineering, Philadelphia, PA, Grant NSF-DMR76-80994, and Kentucky Univ., Lexington. Dept. of Physics and Astronomy.
Structure-Property Relationships in Intercalated Graphite. (2002)
Dresselhaus,M. S., Dresselhaus,G.
Under this contract a study has been carried out on the electronic, lattice, magnetic, structural, and thermal transport properties of intercalated graphite, including the modeling of these...
Dresselhaus,M. S., Dresselhaus,G., Fischer,J. E., Moran,M. J.
Contents: Structure and Phase Transitions; Carbon Fibers; Spectroscopy; Electronic Structure; Transport Properties; Superconductivity and Magnetism; Synthesis, Batteries and Intercalation Kinetics;...
Structure-Property Relationships in Intercalated Graphite. (2002)
Dresselhaus,M. S., Dresselhaus,G.
Experimental and theoretical studies have been carried out relevant to the structural, lattice electronic, magnetic and superconducting properties of synthetic metals prepared by intercalating...
Synthetic Metals from Intercalated Graphite. (2002)
Dresselhaus,M. S., Dresselhaus,G.
The fourth semi-annual report on 'Synthetic Metals from Intercalated Graphite' gives recent advances in magnetic materials formed from graphite compounds. The materials show clear evidence of...
Synthetic Metals from Intercalated Graphite. (2002)
Dresselhaus,M. S., Dresselhaus,G.
During the six month period April 1, 1985-September 30, 1985, efforts on the Program Synthetic Metals from Intercalated Graphite were largely focused on studies of magnetic graphite intercalation...
Synthetic Metals from Intercalated Graphite. (2002)
Dresselhaus,M. S., Dresselhaus,G.
During the six month period October 1, 1985--March 31, 1986, efforts on the Program 'Synthetic Metals from Intercalated Graphite' were largely focused on studies of magnetic graphite intercalation...
Pimenta,M. A., Hanlon,E. B., Marucci,A., Corio,P., Brown,S. D. M., Empedocles,S. A., ...
In this work we have studied the dispersion of the disorder-induced (D) and the second-order (G') Raman bands in single wall carbon nanotubes using several laser excitation energies (E laser) in the...
Aharonov-Bohm spectral features and coherence lengths in carbon nanotubes (2000)
Roche, S., Dresselhaus, G., Dresselhaus, M. S., Saito, R.
The electronic properties of carbon nanotubes are investigated in the presence of disorder and a magnetic field parallel or perpendicular to the nanotube axis. In the parallel field geometry, the...
Observation of Individual Josephson Vortices in YBCO Bicrystal Grain-boundary Junctions (2000)
Xin, H., Oates, D. E., Sridhar, S., Dresselhaus, G., Dresselhaus, M. S.
The response of YBCO bicrystal grain-boundary junctions to small dc magnetic fields (0 - 10 Oe) has been probed with a low-power microwave (rf) signal of 4.4 GHz in a microwave-resonator setup. Peaks...
Xin, H., Oates, D. E., Anderson, A. C., Slattery, R. L., Dresselhaus, G., Dresselhaus, M. S.
The effect of the patterning process on the nonlinearity of the microwave surface resistance $R_S$ of YBCO thin films is investigated. With the use of a sapphire dielectric resonator and a stripline...
Size Effects in Carbon Nanotubes (1998)
Kiang, C. -H., Endo, M., Ajayan, P. M., Dresselhaus, G., Dresselhaus, M. S.
The inter-shell spacing of multi-walled carbon nanotubes was determined by analyzing the high resolution transmission electron microscopy images of these nanotubes. For the nanotubes that were...
Magnetic Properties of CoCl2-Intercalated Graphite, (1998)
Elahy,M., Shayegan,M., Szeto,K. Y., Dresselhaus,G.
The temperature and magnetic field dependence of the magnetic susceptibility and heat capacity of graphite-CoC12 are investigated to understand the role of dimensionality in the observed magnetic...
The Anomalous Magnetoresistance of Graphite at High Magnetic Fields, (1998)
Timp,G., Dresselhaus,P. D., Chieu,T. C., Dresselhaus,G., Iye,Y.
The angular dependence of the high field magnetoresistance anomaly in graphite is reported. The observed angular dependence is consistent with the functional form for the phase boundary of a charge...
Synthetic Metals from Intercalated Graphite. (1998)
Dresselhaus,M. S., Dresselhaus,G.
During the six month period October 1, 1986 - March 31, 1987, efforts on the Program 'Synthetic Metals from Intercalated Graphite' were largely focused on studies of magnetic and superconducting...
Dresselhaus, M. S., Dresselhaus, G., Solin, S. A.
This volume is a collection of extended abstracts presented at the Symposium on Graphite Intercalation Compounds Keywords: First Principles Calculation of Carbon carbon Bond Lengths for Graphite...
Stress Measurements in Graphite Fibers by Laser Raman Spectroscopy. (1998)
Sakata, H., Dresselhaus, G., Endo, M.
Heat treated benzene derived graphite fibers have been characterized by Raman spectroscopy as a function of applied uniaxial tensile stress. Linear shifts are observed in the frequency of the Raman...
Observation of Metallic Conductivity in Liquid Carbon. (1998)
Heremans, J., Olk, C. H., Eesley, G. L., Steinbeck, J., Dresselhaus, G.
The temperature dependence of the electrical resistivity of carbon fibers has been measured at atmospheric pressure and for temperatures up to and above the melting point at 4450 Kelvin. Vapor-grown...
Effect of Uniaxial Stress on the Raman Spectra of Graphite Fibers. (1998)
Sakata, H., Dresselhaus, G., Dresselhaus, M. S., Endo, M.
Measurements of the effect of uniaxial stress on the frequency of the zone center optical phonons in heat-treated benzene-derived graphite fibers have been performed using first-order Raman...
Synthetic Metals from Intercalated Graphite. (1998)
Dresselhaus, M. S., Dresselhaus, G.
A summary is presented of research carried out over the three year period October 1, 1984 - September 30, 1987 on the program 'Synthetic Metals from Intercalated Graphite'. The research covers...
Superconductivity and Magnetism in Layered Materials. (1998)
Dresselhaus, M. S., Dresselhaus, G.
During the one year period of this grant October 15, 1987-October 1 4, 1988, efforts on the Program Superconductivity and Magnetism in Layered Materials were largely focused on introduction of our...
Fundamental Studies of Near Surface Modification of Carbon Fibers. (1998)
Dresselhaus, M. S., Dresselhaus, G.
A summary of work carried out under the entire duration of this contract on 'Fundamental Studies of Near Surface Modification of Carbon Fibers' from 9/1/85 to 4/30/90 is presented. Keywords: Carbon...
Basic Optical Studies of High T sub c Oxide Superconductors. (1998)
Dresselhaus, M. S., Dresselhaus, G.
During the 1992-93 year of the research program on Basic Optical Studies of High T sub c Oxide Superconductors, the effort was focused on a number of projects. The collaborative study of the...
Electronic Structure and Growth Mechanism of Carbon Tubules. (1998)
Saito, Riichiro, Fujita, Mitsutaka, Dresselhaus, G., Dresselhaus, M. S.
An one-dimensional electronic band structure model for carbon tubules is summarized. the general structure of carbon tubules and fullerenes is projected on a two-dimensional hexagonal lattice sheet...
Microwave and Transport Studies of Superconducting Films of YBCO and Fullerenes. (1997)
Dresselhaus, M. S., Dresselhaus, G.
During the 1995-96 year of the research program on 'Microwave and Transport Studies of Superconducting Films of YBCO and Fullerenes,' the effort was focused on several projects. The main highlight...
Science of Fullerenes and Carbon Nanotubes (1996)
Dresselhaus, M.S., Dresselhaus, G., Eklund, P.C.
Los fullerenes son estructuras altamente simétricas formadas únicamente con átomos de carbono y de dimensiones nanométricas. De ellas la más famosa ha sido la estructura C60. Esta estructura que...
Science of Fullerenes and Carbon Nanotubes (1996)
Dresselhaus, M.S., Dresselhaus, G., Eklund, P.C.
0-12-221820-5
磁性黒鉛層間化合物の輸送現象(基研短期研究計画『層状複合化合物の秩序化と乱れ-層間化合物,超伝導化合物,量子反強磁性体-』,研究会報告) (1989)
杉原, 硬, 小林, 宏司, 大島, 久, 汐崎, 郁代, 都竹, 卓郎, Nicholls, J. T., ...
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Anomalous skin effect in a magnetic field (1958)
Mattis, Daniel C., Dresselhaus, G.
A classical and quantum mechanical derivation of cyclotron resonance in metals is given. The classical result differs slightly from that obtained by Azbel and Kaner. The quantum derivation yields the...
Anomalous skin effect in a magnetic field (1958)
Mattis, Daniel C., Dresselhaus, G.
A classical and quantum mechanical derivation of cyclotron resonance in metals is given. The classical result differs slightly from that obtained by Azbel and Kaner. The quantum derivation yields the...