Ab initio electron mobility and polar phonon scattering in GaAs
                    Journal Article
                    ·
                    
                    · Physical Review B
                    
                
            - California Institute of Technology (CalTech), Pasadena, CA (United States); DOE/OSTI
- California Institute of Technology (CalTech), Pasadena, CA (United States)
In polar semiconductors and oxides, the long-range nature of the electron-phonon (e- ph) interaction is a bottleneck to compute charge transport from first principles. In this work, we develop an efficient ab initio scheme to compute and converge the e- ph relaxation times (RTs) and electron mobility in polar materials. We apply our approach to GaAs, where by using the Boltzmann equation with state-dependent RTs, we compute mobilities in excellent agreement with experiment at 250 – 500 K . The e- ph RTs and the phonon contributions to intravalley and intervalley e- ph scattering are also analyzed. Our work enables efficient ab initio computations of transport and carrier dynamics in polar materials.
- Research Organization:
- California Inst. of Technology (CalTech), Pasadena, CA (United States); Univ. of California, Oakland, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0004993; AC02-05CH11231
- OSTI ID:
- 1535797
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 20 Vol. 94; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
                        
                        
                            
                                
                                
                                    Piezoelectric Electron-Phonon Interaction from Ab Initio Dynamical Quadrupoles: Impact on Charge Transport in Wurtzite GaN
                                
                                
First-principles mode-by-mode analysis for electron-phonon scattering channels and mean free path spectra in GaAs
$\mathrm{Perturbo}$: A software package for ab initio electron–phonon interactions, charge transport and ultrafast dynamics
                
                                    Journal Article
                                    ·
                                    Mon Sep 21 04:00:00 UTC 2020
                                    · Physical Review Letters
                                    ·
                                    OSTI ID:1801645
                                
                                
                                        
                                            
                                                
                                                
                                            
                                                
                                                
                                            
                                                
                                                
                                            
                                            +2 more
                                        
                                
                                                
                                
                            
                        
                            
                                First-principles mode-by-mode analysis for electron-phonon scattering channels and mean free path spectra in GaAs
                                    Journal Article
                                    ·
                                    Thu Feb 16 04:00:00 UTC 2017
                                    · Physical Review B
                                    ·
                                    OSTI ID:1388462
                                
                                
                                        
                                            
                                                
                                                
                                            
                                                
                                                
                                            
                                                
                                                
                                            
                                            +2 more
                                        
                                
                                                
                                
                            
                        
                            
                                $\mathrm{Perturbo}$: A software package for ab initio electron–phonon interactions, charge transport and ultrafast dynamics
                                    Journal Article
                                    ·
                                    Mon Mar 22 04:00:00 UTC 2021
                                    · Computer Physics Communications
                                    ·
                                    OSTI ID:1850879
                                
                                
                                        
                                            
                                                
                                                
                                            
                                                
                                                
                                            
                                                
                                                
                                            
                                            +3 more
                                        
                                
                                                
                                
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                        
                            
                                                    
                    