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Optical-absorption cross-sections and energy-loss spectra of aligned multishell carbon nanotubes are investigated, on the basis of photonic band-structure calculations. A local graphite-like dielectric tensor is assigned to every point of…

材料科学 · 物理学 2009-11-07 F. J. Garcia-Vidal , J. M. Pitarke

We theoretically investigated electron energy loss spectroscopy (EELS) of ultraviolet surface plasmon modes in aluminum nanodisks. Using full-wave simulations, we studied the impact of diameter on the resonant modes of the nanodisks. We…

光学 · 物理学 2023-07-19 Yujia Yang , Richard G. Hobbs , Phillip D. Keathley , Karl K. Berggren

We characterize the energy loss of the non-equilibrium electron system in individual metallic single-walled carbon nanotubes at low temperature. Using Johnson noise thermometry, we demonstrate that, for a nanotube with ohmic contacts, the…

介观与纳米尺度物理 · 物理学 2015-05-20 Daniel F. Santavicca , Joel D. Chudow , Daniel E. Prober , Meninder S. Purewal , Philip Kim

We present results for the optical absorption spectra of small-diameter single-wall carbon and boron nitride nanotubes obtained by {\it ab initio} calculations in the framework of time-dependent density functional theory. We compare the…

We show that the local temperature dependence of thermalized electron and phonon populations along metallic carbon nanotubes is the main reason behind this non-linear transport characteristics in the high bias regime. Our model that…

介观与纳米尺度物理 · 物理学 2009-11-11 M. A. Kuroda , J. -P. Leburton

We investigate the propagation of electron wavepackets in single-walled carbon nanotubes via a Lindblad-based density-matrix approach that enables us to account for both dissipation and decoherence effects induced by various phonon modes.…

介观与纳米尺度物理 · 物理学 2015-07-07 Roberto Rosati , Fabrizio Dolcini , Fausto Rossi

Single-wall carbon nanotubes are almost ideal systems for the investigation of exotic many-body effects due to non-Fermi liquid behavior of interacting electrons in one dimension. Recent theoretical and experimental results are reviewed…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Odintsov , H. Yoshioka

We characterized the energy band dispersion near the Fermi level in single-walled carbon nanotubes using low-temperature scanning tunneling microscopy. Analysis of energy dependent standing wave oscillations, which result from quantum…

介观与纳米尺度物理 · 物理学 2009-11-07 Min Ouyang , Jin-Lin Huang , Charles M. Lieber

Explicit expressions for the wave functions and dispersion equation for the band p - electrons in single-wall carbon nanotubes are obtained within the method of zero-range potentials. They are then used to investigate the absorption…

其他凝聚态物理 · 物理学 2009-11-11 Vadim Adamyan , Sergey Tishchenko

We present a quantitative theory of optical absorption polarized transverse to the tube axes in semiconducting single-walled carbon nanotubes. Transverse optical absorption in semiconducting single-walled carbon nanotubes is to an exciton…

材料科学 · 物理学 2009-11-13 Zhendong Wang , Hongbo Zhao , Sumit Mazumdar

We report measurements of the spatial dependence of the electron energy distribution in carbon nanotubes, from which electron interactions are determined. Using nonequilibrium tunneling spectroscopy with multiple superconducting probes, we…

介观与纳米尺度物理 · 物理学 2015-04-17 Nicholas Bronn , Nadya Mason

We present a tight binding theory to analyze the motion of electrons between carbon nanotubes bundled into a carbon nanotube rope. The theory is developed starting from a description of the propagating Bloch waves on ideal tubes, and the…

介观与纳米尺度物理 · 物理学 2009-10-31 Ahmed A. Maarouf , Charles L. Kane , Eugene J. Mele

We present a low energy-theory for non-linear transport in finite-size interacting single-wall carbon nanotubes. It is based on a microscopic model for the interacting p_z electrons and successive bosonization. We consider weak coupling to…

介观与纳米尺度物理 · 物理学 2007-05-23 Leonhard Mayrhofer , Milena Grifoni

Carbon nanotubes provide a unique system to study one-dimensional quantization phenomena. Scanning tunneling microscopy is used to observe the electronic wave functions that correspond to quantized energy levels in short metallic carbon…

We calculate the plasma excitations in a bundle as well as a two-dimensional (2D) periodic array of aligned parallel multishell nanotubes on a substrate. The carbon nanotubes are oriented perpendicular to the substrate. The model we use for…

介观与纳米尺度物理 · 物理学 2015-05-18 Tibab McNeish , Godfrey Gumbs , Antonios Balassis

Tunneling density of states of both the massless and massive (gapped) particles in metallic carbon nanotubes is known to have anomalous energy dependence. This is the result of coupling to multiple low-energy bosonic excitation (plasmons).…

介观与纳米尺度物理 · 物理学 2011-09-09 E. G. Mishchenko , O. A. Starykh

The response of fullerenes and carbon nanotubes is investigated by representing each carbon atom by its atomic polarizability. The polarization of each carbon atom produces an induced dipole that is the result of the interaction with a…

材料科学 · 物理学 2012-11-13 A. Rivacoba , F. J. Garcia de Abajo

A low energy-theory for non-linear transport in finite-size single-wall carbon nanotubes, based on a microscopic model for the interacting pz electrons and successive bosonization, is presented. Due to the multiple degeneracy of the energy…

强关联电子 · 物理学 2007-05-23 Leonhard Mayrhofer , Milena Grifoni

We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes in the presence of mutually orthogonal electric and magnetic fields transverse to the tube's axis. We find that the fields give rise to an…

介观与纳米尺度物理 · 物理学 2015-05-14 Wade DeGottardi , Tzu-Chieh Wei , Victoria Fernandez , Smitha Vishveshwara

We study theoretically the electronic structure, transport and optical properties for a zigzag single-wall carbon nanotube connected to two normal conductor leads under the irradiation of an external electromagnetic field at low…

介观与纳米尺度物理 · 物理学 2009-11-13 Wenhu Liao , Guanghui Zhou , Kai-He Ding
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