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2005 International Conference on MEMS,NANO and Smart Systems

Date 24-27 July 2005

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Displaying Results 1 - 25 of 133
  • Proceedings. 2005 International Conference on MEMS, NANO and Smart Systems

    Publication Year: 2005
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  • 2005 International Conference on MEMS,NANO and Smart Systems - Title Page

    Publication Year: 2005, Page(s):i - iii
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  • 2005 International Conference on MEMS,NANO and Smart Systems - Copyright

    Publication Year: 2005, Page(s): iv
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  • 2005 International Conference on MEMS,NANO and Smart Systems - Table of contents

    Publication Year: 2005, Page(s):v - xiv
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  • Preface

    Publication Year: 2005, Page(s): xv
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  • Conference Committee

    Publication Year: 2005, Page(s):xvi - xxiv
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  • Novel one dimensional nanostructures

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (57 KB)

    Summary form only given, as follows. The combination of remarkable mechanical properties and unique electronic properties of carbon nanotubes (CNTs) offers significant potential for revolutionary applications in electronics devices, computing and data storage technology, chemical and biosensors, composites, nanoelectromechanical systems (NEMS), and as tip in scanning probe microscopy (SPM) for ima... View full abstract»

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  • The intrinsic spin Hall effect

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (58 KB)

    Summary form only given, as follows. A recent theory predicts that dissipationless spin currents can be induced purely by an electric field in conventional semiconductors. The dissipationless spin current is derived from a novel topological structure in momentum space, is independent of the sample disorder and leads to the intrinsic spin Hall effect. In hole doped semiconductors, with or without i... View full abstract»

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  • Efficient spin injection using tunnel injectors

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (56 KB)

    Summary form only given, as follows. Semiconductor spintronics aims to develop novel sensor, memory and logic devices by manipulating the spin states of carriers in semiconducting materials. This talk will focus on electrical spin injection into semiconductors, which is a prerequisite for spintronics and, in particular, on tunnel based spin injectors that are potentially operable above room temper... View full abstract»

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  • Spin-transfer induced switching in magnetic nanopillars

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (55 KB)

    Summary form only given, as follows. The author reviews the basic experimental findings of spin-induced magnetic switching in sub-100 nm magnetic nanopillar spin valves. Issues include the basic physics of a spin-current-induced torque on a nanomagnet, sample fabrication techniques, and device properties in terms of current-induced magnetic excitation and magnetic switching dynamics. Potentials fo... View full abstract»

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  • Injecting and controlling spin populations and currents in semiconductors using optically induced quantum interference effects

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (65 KB) | HTML iconHTML

    Summary form only given. This paper reviews the recent developments of epitaxial ferromagnetic heterostructures based on semiconductors for spintronics. The magnetotransport of prepared ferromagnetic III-V semiconductor heterostructures (Mn-delta-doped GaAs/Be-doped AlGaAs) and the control of ferromagnetism in the heterostructures by using gate electric field and light irradiation at relatively hi... View full abstract»

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  • Instability of submicron anisotropic liquid cylinders and jets in magnetic field

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (59 KB)

    The capillary instability of a magnetically anisotropic liquid cylinder and jets, such as Nematic liquid crystals (LC), in magnetic fields, is considered using an energy approach. The boundary problem is solved in the linear approximation of the anisotropy χa of the magnetic susceptibility χ. The effect of the anisotropy, in the region 1 |χ|>| χa| χ... View full abstract»

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  • On the effect of cationic surfactants in the rinse to reduce pattern collapse in high aspect ratio patterning of photoresists

    Publication Year: 2005, Page(s):14 - 15
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    This paper presents a novel concept based on the mechanism of cationic surfactant adsorption on the photoresist surface. The minimum capillary forces calculated from the study with model photoresist surfaces and surfactant solutions correlated with a maximum of pattern collapse reduction obtained in the photolithographic process. View full abstract»

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  • A disjoining pressure isotherm for curved, interfacial boundaries

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (59 KB)

    Summary form only given, as follows. The disjoining pressure (DP) concept was introduced as an explanation for the excess pressure that must be applied to offset the tendency of the film phase to separate or disjoin from the confining bulk phases. It is considered to be a function of the separation distance between the confining phases with expressions for dispersion, electrostatic, structural and... View full abstract»

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  • Influence of solid-liquid-liquid interactions on multiphase transport behavior in porous media

    Publication Year: 2005, Page(s):17 - 18
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (94 KB) | HTML iconHTML

    This paper examines the effect of two types of surfactants (one nonionic and the other anionic) on wettability and multiphase flow characteristics by conducting contact angle measurements and flow tests through porous media using three different rock-fluids systems. The contact angle measurements have been made using the Dual-Drop Dual-Crystal (DDDC) technique and the multiphase flow characteristi... View full abstract»

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  • Non-invasive mapping of fluid temperature and flow in microsystems

    Publication Year: 2005, Page(s):21 - 26
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB) | HTML iconHTML

    Currently available temperature and fluid flow measurement methods have shown limitations in microscale systems. This research concerns the development of a non-invasive optical measurement technique and sensor for mapping two-dimensional temperature fields and, ultimately fluid flows. The system is based on the Shack-Hartmann wave-front sensor. Analytical considerations underlying the mapping tec... View full abstract»

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  • Avery Dennison micro-nano replication capabilities for MEMS and microfluidics

    Publication Year: 2005, Page(s):27 - 29
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    Polymers can be used as one of most promising materials for MEMS applications. In this paper, we successfully demonstrated embossing micro-nano structures on polymers, especially high temperature polymers (>300°C) by using Avery's unique proprietary embossing technology. Also in this paper, we demonstrated a roll-to-roll embossing/lamination method for manufacturing low cost plastic microfluid... View full abstract»

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  • A parametric study of thermal effects on the reliability of RF MEMS switches

    Publication Year: 2005, Page(s):30 - 31
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB) | HTML iconHTML

    The influence of thermal effects on the reliability of RF MEMS switches is investigated in this paper. Low power consumption and capacity to handle high power at very high frequency elevate the scope of RF MEMS in the field of satellite and mobile communication technology immensely. The reliability of these switches are still under consideration as they fail due to thermal stresses developed durin... View full abstract»

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  • Optimization of turn geometries in microfluidic channels

    Publication Year: 2005, Page(s):32 - 35
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB) | HTML iconHTML

    Microfluidic separation systems often use channels with turns to achieve long separation distance within a compact region. But the bends or curves degrade the performance of separation efficiency. To tackle this problem, channels are modeled with different types of 90 degree turns to reduce the "racetrack" effect. In this paper, the finite element method is used to numerically solve the equations ... View full abstract»

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  • Spin polarized transport effects in III-V semiconductor heterostructures

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (58 KB)

    Summary form only given. In the field of spintronics, GaMnAs, a ferromagnetic semiconductor, offers many advantages to study tunnel magnetotransport properties when used as an electrode. The complexity of the transport mechanisms associated with spin orbit coupled states make this material a powerful means for finding novel effects; also it provides new challenges for a theoretical understanding. ... View full abstract»

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  • Injecting and controlling spin populations and currents in semiconductors using optically induced quantum interference effects

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (58 KB)

    It is widely known that interband optical excitation of semiconductors such as GaAs using circularly polarized light can induced a net electron spin polarization because of the spin-orbit interaction which modifies the valence band states. In the last few years we have undertaken a series of theoretical and experimental investigations to explore how all-optical processes can be used to inject and ... View full abstract»

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  • Spinwaves in spintronics structures

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (57 KB)

    We have been applying in situ and ex situ spin-wave Brillouin Light Scattering (BLS) techniques to spinwave structures we are growing by Molecular Beam Epitaxy (MBE). The sensitivity of our BLS technique is illustrated by our ability to measure spin-wave excitations for samples as thin as 1 monolayer of Co buried by as much as 20 nanometers of Au. This talk will describe the use of in situ and ex ... View full abstract»

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  • Ferromagnetic III-V semiconductor films with high transition temperature

    Publication Year: 2005, Page(s):42 - 44
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB) | HTML iconHTML

    The fabrication process of the GaAs-based materials included the deposition of the (Ga,Mn)As alloy at low temperature by conventional solid-source molecular beam epitaxy (MBE) and subsequent thermal annealing. The ferromagnetic and paramagnetic phases are found to coexist in the whole temperature range below Tc. Rapid thermal annealing turns the ferromagnetic (Ga,Mn)As into a paramagnetic matrix. ... View full abstract»

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  • New trends in rough surface characterization: when the wrinkle is beautiful

    Publication Year: 2005, Page(s):47 - 48
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    The rough material can improve the friction, the adhesion, as well as reduce the wetting which were characterised by Brownian surface. The work is to analyse the possible relationship between different classical roughness parameters, the maximum surface amplitude, the Hurst exponent, the lacunarity. The topographies were obtained using the atomic force microscopy. View full abstract»

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  • Superhydrophobic behavior of a microtextured surface: a thermodynamic approach

    Publication Year: 2005
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (67 KB) | HTML iconHTML

    A pillar microtexture, which has been intensively investigated in experiments, is chosen as a typical example and thermodynamically analyzed in detail. To gain a comprehensive insight into superhydrophobic behavior, the roles of pillar height, width and spacing (or roughness and solid fraction), intrinsic CA, drop size, and vibrational energy as well as fractal structure and formation of liquid fi... View full abstract»

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