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Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load
The tensile strengths of individual multiwalled carbon nanotubes (MWCNTs) were measured with a "nanostressing stage" located within a scanning electron microscope. The tensile-loading experiment wasExpand
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Tensile loading of ropes of single wall carbon nanotubes and their mechanical properties
The mechanical response of 15 single wall carbon nanotube (SWCNT) ropes under tensile load was measured. For 8 of these ropes strain data were obtained and they broke at strain values of 5.3% orExpand
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Generation of intense uv radiation by subharmonically seeded single-pass free-electron lasers.
  • Yu
  • Physics, Medicine
  • Physical review. A, Atomic, molecular, and…
  • 15 October 1991
We present a detailed analysis of a subharmonically seeded single-pass free-electron laser (FEL) utilizing two wiggler magnets separated by a dispersion section. To be specific, suppose the seed toExpand
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Photoinduced luminescence from the noble metals and its enhancement on roughened surfaces.
  • Boyd, Yu, Shen
  • Materials Science, Medicine
  • Physical review. B, Condensed matter
  • 15 June 1986
Single-photon- and multiphoton-induced luminescence spectra were obtained from clean samples of silver, copper, and gold with both smooth and rough surfaces. The spectra reveal new features which areExpand
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Investigation of the radial deformability of individual carbon nanotubes under controlled indentation force
  • Yu, Kowalewski, Ruoff
  • Materials Science, Medicine
  • Physical review letters
  • 14 August 2000
Tapping-mode atomic force microscopy was used to study the radial deformability of a multiwalled carbon nanotube (MWCNT). By imaging the MWCNT under different tapping forces, we were able toExpand
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Quantum tunneling in a dissipative system.
  • Yu
  • Physics, Medicine
  • Physical review. A, Atomic, molecular, and…
  • 1 November 1996
Applying a technique developed recently [L. H. Yu and C. P. Sun, Phys. Rev. A {bold 49}, 592 (1994); L. H. Yu, Phys. Lett. {bold 202}, 167 (1995)] for a harmonic oscillator coupled to a bath ofExpand
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Electron-hose instability in the ion-focused regime.
A relativistic electron beam propagating through an ummagnetized, underdense plasma exhibits a transverse instability due to the coupling of the beam centroid to plasma electrons at the ion-channel''Expand
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Multiband treatment of quantum transport in interband tunnel devices.
  • Ting, Yu, McGill
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • 15 February 1992
We describe a method for computing transmission coefficients for multiband tight-binding band-structure models. In this method, the transmission probability can be calculated simply by solving aExpand
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Complete suppression of neoclassical tearing modes with current drive at the electron-cyclotron-resonance frequency in ASDEX upgrade tokamak
  • Gantenbein, Zohm, +5 authors Yu
  • Physics, Medicine
  • Physical review letters
  • 7 August 2000
Noninductive current drive has been performed in the tokamak ASDEX upgrade by injection of radiofrequency waves at the second harmonic of the electron-cyclotron frequency in order to suppressExpand
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