Nanoindentation response of a single micrometer-sized GaAs wall

Le Bourhis, E.; Patriarche, G.
April 2005
Applied Physics Letters;4/18/2005, Vol. 86 Issue 16, p163107
Academic Journal
Wall-patterned GaAs surfaces have been elaborated by photolithography and dry etching. The mechanical response of individual μm-sized walls was tested at different positions on the wall by nanoindentation. Overall results show that contact stiffness remains constant across the wall while total penetration drastically increases at the proximity of the free sides of the wall. Transmission electron microscopy was used to get further insight into the plastic deformation of the walls and reveals that the central-plastic zone governs the mechanical response instead of the rosette arms. The application of substrate patterning with enhanced plastic compliance is suggested in order to eliminate residual dislocations appearing in mismatched structures grown for optoelectronic devices.


Related Articles

  • Microcantilever actuation via periodic internal heating. Lee, Jungchul; King, William P. // Review of Scientific Instruments;Dec2007, Vol. 78 Issue 12, p126102 

    This paper reports electrothermal actuation of silicon microcantilevers having integrated resistive heaters. Periodic electrical excitation induced periodic resistive heating in the cantilever, while the cantilever deflection was monitored with a photodetector. Excitation was either at the...

  • YAG is redefined through the diode-pumped disk laser. Havrilla, David // Laser Focus World;Aug2005, Vol. 41 Issue 8, p102 

    Focuses on the means of disk laser technology to solve the limitations of beam quality and fiber length inherent in rod-style lasers. Ability of diode-pumped disk laser to dissipate heat from the lasing medium; Comparison between disk and diode-pumped lasers; Advantages of beam quality.

  • Prisms are drawn, not ground and polished.  // Laser Focus World;Sep2004, Vol. 40 Issue 9, p9 

    Focuses on the use of small prisms in telecommunications and optoelectronic devices. Applications of the prisms; Description of prisms; Quality prisms used in optoelectronic devices.

  • Fiber Amplifier.  // Network Dictionary;2007, p357 

    A definition of the term "Optical Fiber Amplifier" is presented. It refers to a device that amplifies an optical signal directly, without the need to convert it to an electrical signal, amplify it electrically, and reconvert it to an optical signal.

  • Ten years of nonlinear optics in photonic crystal fibre. Dudley, John M.; Taylor, J. Roy // Nature Photonics;Feb2009, Vol. 3 Issue 2, p85 

    The year 2009 marks the tenth anniversary of the first report of white-light supercontinuum generation in photonic crystal fibre. This result had a tremendous impact on the field of nonlinear fibre optics and continues to open up new horizons in photonic science. Here we provide a concise and...

  • A Continuous Millimeter-Wave Imaging Scanner for Art Conservation Science. Younus, Ayesha; Caumes, Jean-Pascal; Salort, Simon; Chassagne, Bruno; Prad�re, Christophe; Dautant, Alain; Zi�g�, Anne; Abraham, Emmanuel // Advances in Optical Technologies;2011, p1 

    A monochromatic continuous millimeter-wave imaging system coupled with an infrared temperature sensor has been used to investigate artistic objects such as painting artworks or antiquities preserved at the museum of Aquitaine. Especially, 2D and 3D analyses have been performed in order to reveal...

  • NO SMOKE AND MIRRORS.  // Industrial Laser Solutions;Nov2006, Vol. 21 Issue 11, p6 

    The article offers anecdote about three Southerners who came to check on panel benders at the Salvagnini America Inc. booth. The booth has no panel bender but lasers. The men at the booth offered the Southerners to run parts on the closest materials and programs to operate the laser with no...

  • Origin of the spatial resolution in atom probe microscopy. Gault, Baptiste; Moody, Michael P.; de Geuser, Frederic; Haley, Daniel; Stephenson, Leigh T.; Ringer, Simon P. // Applied Physics Letters;7/20/2009, Vol. 95 Issue 3, p034103 

    Atom-probe microscopy offers unprecedented insights on the subnanometer structure and chemistry of materials in three dimensions. The actual spatial resolution achievable is however still an uncertain parameter, as no comprehensive study has been undertaken to unveil the physics underpinning how...

  • 256-channel magnetic imaging system. da Silva, F. C. S.; Halloran, S. T.; Kos, A. B.; Pappas, D. P. // Review of Scientific Instruments;Jan2008, Vol. 79 Issue 1, p013709 

    We present the design and fabrication of a magnetoresistive imaging system capable of scanning 256 channels simultaneously along linear ranges of either 4 or 13 mm. High speed electronics read the channels and transfer the data to a computer that builds and displays the images. The system was...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics