Title: Many-body renormalization of the electron effective mass of InSe

Journal Article · · Physical Review B
ORCiD logo [1];  [2]
  1. Westlake Univ., Hangzhou (China); Univ. of Oxford (United Kingdom); OSTI
  2. Univ. of Texas, Austin, TX (United States); Univ. of Oxford (United Kingdom)

The layered semiconductor InSe has a wide range of attractive electronic and optoelectronic properties, in which the effective mass of the charge carriers plays a key role. Here, we study from first principles the many-body renormalization of the electron effective mass in γ-InSe, taking into account the effects of both electron-electron and electron-phonon interactions. Electron-electron interaction, treated within the many-body $$\textit{GW}$$ approximation, leads to around 15% of the increase in the in-plane effective mass over the result from density functional theory, and a more than threefold increase in the out-of-plane electron effective mass. The surprisingly large directional anisotropy in the mass renormalization is explained in terms of the symmetries of band-edge wave functions. In this work, the mass enhancement induced by electron-phonon interactions, which we find to mainly originate from Fröhlich electron-phonon coupling, is less than 10% at room temperature, indicating weak polaronic effect. After including the many-body renormalization effects, the calculated electron effective masses of InSe are 0.12 and 0.09 in the in-plane and out-of-plane directions, respectively.

Research Organization:
Univ. of Texas, Austin, TX (United States)
Sponsoring Organization:
European Union’s Horizon 2020; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0020129
OSTI ID:
1803909
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 3 Vol. 101; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (61)

Back Gated Multilayer InSe Transistors with Enhanced Carrier Mobilities via the Suppression of Carrier Scattering from a Dielectric Interface journal August 2014
Many-Particle Physics book January 2000
Fundamentals of Semiconductors book January 2010
Semiconductors: Data Handbook book January 2004
Fundamentals of Semiconductors book January 1996
Fundamentals of Semiconductors: Physics and Materials Properties book January 2005
Temperature dependence of the energy gap in semiconductors journal January 1967
Resonance Raman scattering study on exciton and polaron anisotropies in InSe journal May 1980
Cyclotron resonance studies on bulk and two-dimensional conduction electrons in InSe journal October 1982
The nature of negative linear expansion in layer crystals C, Bn, GaS, GaSe and InSe journal March 1985
yambo: An ab initio tool for excited state calculations journal August 2009
An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions journal August 2014
EPW: Electron–phonon coupling, transport and superconducting properties using maximally localized Wannier functions journal December 2016
Semiconductors: Data Handbook journal August 2004
Intrinsic Electron Mobility Exceeding 10 3 cm 2 /(V s) in Multilayer InSe FETs journal May 2015
Dimensional Crossover in the Carrier Mobility of Two-Dimensional Semiconductors: The Case of InSe journal February 2019
Indirect to Direct Gap Crossover in Two-Dimensional InSe Revealed by Angle-Resolved Photoemission Spectroscopy journal January 2019
High electron mobility, quantum Hall effect and anomalous optical response in atomically thin InSe journal November 2016
Ultra-thin van der Waals crystals as semiconductor quantum wells journal January 2020
Many-Particle Physics journal March 1982
The GW method journal March 1998
Fröhlich polaron and bipolaron: recent developments journal May 2009
Advanced capabilities for materials modelling with Quantum ESPRESSO journal October 2017
Infrared-to-violet tunable optical activity in atomic films of GaSe, InSe, and their heterostructures journal September 2018
Quantum Theory of the Dielectric Constant in Real Solids journal April 1962
Inhomogeneous Electron Gas journal November 1964
Temperature Dependence of the Energy Gap in Semiconductors journal June 1951
Electron correlation in semiconductors and insulators: Band gaps and quasiparticle energies journal October 1986
Efficient pseudopotentials for plane-wave calculations journal January 1991
Accurate and simple analytic representation of the electron-gas correlation energy journal June 1992
Self-consistent G W calculations for semiconductors and insulators journal June 2007
Quasiparticle band structure based on a generalized Kohn-Sham scheme journal September 2007
Electron-phonon interaction using Wannier functions journal October 2007
Accurate G W self-energies in a plane-wave basis using only a few empty states: Towards large systems journal August 2008
How dielectric screening in two-dimensional crystals affects the convergence of excited-state calculations: Monolayer MoS 2 journal December 2013
G W quasiparticle band gap of the hybrid organic-inorganic perovskite CH 3 NH 3 PbI 3 : Effect of spin-orbit interaction, semicore electrons, and self-consistency journal December 2014
Screening and many-body effects in two-dimensional crystals: Monolayer MoS 2 journal June 2016
Electronic and optical properties of two-dimensional InSe from a DFT-parametrized tight-binding model journal December 2016
Spin-orbit coupling, optical transitions, and spin pumping in monolayer and few-layer InSe journal November 2017
Hybrid k · p tight-binding model for intersubband optics in atomically thin InSe films journal April 2018
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces journal April 2008
Fröhlich Electron-Phonon Vertex from First Principles journal October 2015
Carrier Lifetimes and Polaronic Mass Enhancement in the Hybrid Halide Perovskite CH 3 NH 3 PbI 3 from Multiphonon Fröhlich Coupling journal August 2018
Ground State of the Electron Gas by a Stochastic Method journal August 1980
Metal-insulator transition in Kohn-Sham theory and quasiparticle theory journal March 1989
Generalized Gradient Approximation Made Simple journal October 1996
Quasiparticle Self-Consistent G W Theory journal June 2006
Phonons and related crystal properties from density-functional perturbation theory journal July 2001
Electronic excitations: density-functional versus many-body Green’s-function approaches journal June 2002
Electron-phonon interactions from first principles journal February 2017
Inhomogeneous Electron Gas journal March 1973
VESTA : a three-dimensional visualization system for electronic and structural analysis journal May 2008
Refinement of the 3R γ-indium monoselenide structure type journal April 1980
Advanced capabilities for materials modelling with Quantum ESPRESSO text January 2017
Froehlich Polaron and Bipolaron: Recent Developments text January 2009
High Electron Mobility, Quantum Hall Effect and Anomalous Optical Response in Atomically Thin InSe text January 2016
Advanced capabilities for materials modelling with Quantum ESPRESSO text January 2017
Spin-orbit coupling, optical transitions, and spin pumping in mono- and few-layer InSe text January 2017
Ultra-thin van der Waals crystals as semiconductor quantum wells text January 2019
Quasiparticle Self-Consistent GW Theory text January 2005
Quasiparticle band structure based on a generalized Kohn-Sham scheme text January 2006