vix.ing · top · new · best · stats · spec

Dissipation in finite systems: Semiconductor NEMS, graphene NEMS, and metallic nanoparticles

2007/12/12 by C. Seoanez, Seoanez, C.
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Strongly Correlated Electrons (cond-mat.str-el) #cond-mat.mes-hall #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.0712.2065

Ph.D. Thesis under the supervision of prof. Francisco Guinea, November 2007, Universidad Autonoma de Madrid - ICMM (CSIC)

arxiv created 2007/12/14 · arxiv updated 2009/12/01

Abstract

This thesis studies three kinds of mesoscopic systems and how one of their collective degrees of freedom is affected by a dissipative environment: a)Nanoelectromechanical systems based on semiconductor materials, and how surface friction processes limit the quality factor of their vibrational eigenmodes at low temperatures, causing as well a frequency shift; b)Graphene - based nanoresonators, and several damping mechanisms limiting the quality factor of its fundamental bending (flexural) eigenmode, and c)The dissipative dynamics of the surface plasmon created in a metallic nanocluster by a laser pulse, discussing the validity and limitations of a very common theoretical model used for its description.

Related