218 citations · 801 across the 9 of their papers we have counts for
9 papers
Spin Torque Generated by Valley Hall Effect in WSe2
D. J. P. de Sousa, M. J. Sammon, Raseong Kim +3
Monolayer transition metal dichalcogenides are promising materials for spintronics due to their robust spin-valley locked valence states, enabling efficient charge-to-spin conversi…
Electron-Phonon Scattering in Planar MOSFETs: NEGF and Monte Carlo Methods
Himadri S. Pal, Dmitri E. Nikonov, Raseong Kim +1
A formalism for incorporating electron-phonon scattering into the nonequilibrium Green's function (NEGF) framework that is applicable to planar MOSFETs is presented. Restructuring…
Cooling of photoexcited carriers in graphene by internal and substrate phonons
Tony Low, Vasili Perebeinos, Raseong Kim +2
We investigate the energy relaxation of hot carriers produced by photoexcitation of graphene through coupling to both intrinsic and remote (substrate) surface polar phonons using t…
Relaxation of Optically Excited Carriers in Graphene
Raseong Kim, Vasili Perebeinos, Phaedon Avouris
We explore the relaxation of photo-excited graphene by solving a transient Boltzmann transport equation with electron-phonon (e-ph) and electron-electron (e-e) scattering. Simulati…
On the Best Bandstructure for Thermoelectric Performance
Changwook Jeong, Raseong Kim, Mark Lundstrom
The conventional understanding that a bandstructure that produces a Dirac delta function transport distribution (or transmission in the Landauer framework) maximizes the thermoelec…
On Landauer vs. Boltzmann and Full Band vs. Effective Mass Evaluation of Thermoelectric Transport Coefficients
Changwook Jeong, Raseong Kim, Mathieu Luisier +2
The Landauer approach to diffusive transport is mathematically related to the solution of the Boltzmann transport equation, and expressions for the thermoelectric parameters in bot…
On momentum conservation and thermionic emission cooling
Raseong Kim, Changwook Jeong, Mark S. Lundstrom
The question of whether relaxing momentum conservation can increase the performance of thermionic cooling device is examined. Both homojunctions and heterojunctions are considered.…
Influence of Dimensionality on Thermoelectric Device Performance
Raseong Kim, Supriyo Datta, Mark S. Lundstrom
The role of dimensionality on the electronic performance of thermoelectric devices is clarified using the Landauer formalism, which shows that the thermoelectric coefficients are r…
Notes on Fermi-Dirac Integrals
Raseong Kim, Xufeng Wang, Mark Lundstrom
Fermi-Dirac integrals appear frequently in semiconductor problems, so a basic understanding of their properties is essential. The purpose of these notes is to collect in one place,…