Results 1 to 10 of about 5,220 (217)
Acoustic analogs for solving problems in solid-state physics [PDF]
The Journal of the Acoustical Society of America, 1990 A basic problem in theoretical solid-state physics is to solve the Schrödinger equation for an electron in the scattering field of some very large number of ions, which is certainly a formidable problem. Fortunately, for a crystal the scattering field is periodic, and one may use Bloch's theorem and obtain a manageable calculation.
J. D. Maynard, M. J. McKenna
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Physical Acoustics in the Solid State [PDF]
The Journal of the Acoustical Society of America, 2006 This article reviews Physical Acoustics in the Solid State by B. Luthi , Berlin, 2005. 428 pp. Price $179.00 (hardcover). ISBN: 3540229108.
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Acoustic Tamm states of three-dimensional solid-fluid phononic crystals
The Journal of the Acoustical Society of America, 2018 In this work, the existence and propagation of acoustic Tamm states at the interface of air and a face-centered cubic solid-fluid phononic crystal composed of spherical air voids interconnected by cylindrical air channels are demonstrated. Supercell band structure computations via the finite element method reveal surface bands for Tamm states on (100),
Korozlu, Nurettin +3 more
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Surface acoustic wave solid-state rotational micromotor
Applied Physics Letters, 2012 Surface acoustic waves (SAWs) are used to drive a 1 mm diameter rotor at speeds exceeding 9000 rpm and torque of nearly 5 nNm. Unlike recent high-speed SAW rotary motors, however, the present design does not require a fluid coupling layer but interestingly exploits adhesive stiction as an internal preload, a force usually undesirable at these scales ...
Shilton, Richie J +3 more
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Experimental Techniques in Solid State and Low-Temperature Acoustics [PDF]
The Journal of the Acoustical Society of America, 1957 At the present time, solid state acoustics extends over the frequency range from about 1 cy/sec up to ultrasonic frequencies of several hundred Mc/sec. A brief survey of the problems and techniques related with different frequency intervals will be presented.
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Solid-State Photochemistry in Resonant Acoustic Mixers
Chemistry – A European JournalAbstract Herein, we developed the first photochemical reaction set‐up under solid‐state conditions using a resonant acoustic mixer (RAM), a novel mechanochemical methodology that eliminates the need for milling media. This innovation outscores previous approaches in the ball mill under avoidance of milling balls and their related ...
Carolina Spula +3 more
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NONLINEAR ACOUSTICS AND SOLID STATE PHYSICS
Le Journal de Physique Colloques, 1979 In addition to mathematical advances and very promising practical applications, the study of Nonlinear Acoustics now is leading to fundamental advances in Solid State Physics. Nonlinear distortion of an ultrasonic wave in a solid is controlled by a nonlinearity parameter which is a function of the third-order elastic (TOE) constants as well as the ...
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In-situ, non-destructive acoustic characterization of solid state electrolyte cells [PDF]
Journal of Power Sources, 2016 Abstract Solid-state electrolytes such as cubic Li6.25Al0.25La3Zr2O12 (LLZO) can enable solid-state batteries, metallic lithium anodes and higher voltage cathodes. However, the stability of cubic LLZO is affected by current density. In beta alumina solid electrolyte, microstructural failure was caused by Na dendrite penetration, and was shown to be a
Schmidt, Robert D., Sakamoto, Jeffrey
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Nonclassical Nonlinear Acoustics in Solids: Methods, Applications, and the State of the Art [PDF]
AIP Conference Proceedings, 2006 We outline the area of “nonclassical” nonlinear acoustics that deals with media exhibiting anomalously strong elastic nonlinearity, including hysteresis, conditioning, and slow dynamics. The entire range of behaviors we term nonlinear, nonlinear, nonequilibrium dynamics (NND).
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