Disorder induced lifetime effects in binary disordered systems: A first principles formalism and an application to disordered graphene

Inelastic Electron Lifetime in Disordered Mesoscopic Systems

Inelastic quasiparticle lifetime due to the electron-electron interaction (outscattering time in the kinetic equation formalism) is calculated for finite metallic diffusive systems (quantum dots) in the whole range of parameters. Both cases of “continuous” (the inelastic level broadening much exceeds the mean level spacing) and “discrete” spectrum are analyzed. In particular, crossover between ...

Localization Effects in Disordered Systems

The basic concepts involved in the physics of localization in disordered systems are discussed on an elementary level. In the case of weak disorder localization effects may be understood as a coherent wave phenomenon. Initially developed to describe electronic transport in disordered metals, localization theory has now found wide application in other areas related to disordered systems. The art...

Valley Hall effect in disordered monolayer MoS2 from first principles

Spin-disorder resistivity of ferromagnetic metals from first principles: The disordered-local-moment approach

Spin-disorder resistivity of ferromagnetic metals from first principles: The disordered-local-moment approach" (2012). Kirill Belashchenko Publications. Paper 21. The paramagnetic spin-disorder resistivity (SDR) of transition-metal ferromagnets Fe, Co, Ni, ordered transition metal alloys Ni 3 Mn and Fe 3 Si as well as Ni 2 MnX (X = In,Sn,Sb) Heusler alloys is determined from first principles. S...

Decay Dynamics in Disordered Systems: Application to Heavily Doped Semiconductors

We have calculated, quantitatively, the time decay of donor-acceptor pair luminescence in compensated semiconductors, incorporating the effect of the potential fluctuations which exist in such materials. We show that the often-reported stretched-exponential decay law can here be derived rigorously, but only to a very close approximation, and, moreover, only provided that there is an alternate, ...