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Chhowalla Group Research
Gold Nanoparticles (acquired by UltraSTEM)
hybrid perovskite single crystals
rubrene OFETs
Professor Shahab Shojaei-Zadeh publishes in Phys Rev Fluids
Fabris Group Research

Phononic heat conduction in disordered crystals

Categories: Physics - Condensed Matter (PHYS-CM)
Speaker: A. Dhar, Raman Institute
Date & Time: October 1, 2009 - 1:30pm
Location: Serin 385

Abstract: We investigate the question as to whether disordered harmonic crystals in two and three dimensions have a finite thermal conductivity. A heuristic argument using localization theory and kinetic theory is given to estimate the system size dependence of the current. Numerical results testing these predictions will be discussed. The numerical studies are based on the Landauer formula using phonon transmission and also on nonequilibrium simulations. The role of ballistic and diffusive phonon modes and the effect of boundary conditions are critically analyzed. The effect of anharmonicity will also be briefly discussed.

Advancing Nanotechnology - IAMDN New Microscopes


Rutgers new scanning transmission electron microscope and new helium ion microscope help researchers develop nanotechnology used to fight cancer, generate power, and create more powerful electronics. Watch the video to learn more.

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