Research paperExperimental CharacterizationComputational DFTImaging the electron charge density in monolayer MoS₂ at the Ångstrom scaleJoel Martis, Sandhya Susarla, Archith Rayabharam, Cong Su et al.2022·10.1017/S1431927619000497·arXiv:2210.09478AbstractFour-dimensional scanning transmission electron microscopy (4D-STEM) is used to image the projected electron charge density in monolayer MoS2. Simultaneously acquired ADF-STEM and CoM images are combined to separate nuclear and electronic contributions, and DFT-derived charge density is used to validate the experimental results. The work emphasizes the role of probe convolution and residual aberrations in interpreting charge-density maps at the atomic scale.Read more
Experimental monolayer 2H-MoS₂ specimen imaged by simultaneously acquired ADF-STEM and 4D-STEM CoM.1 characterization3 figuresMoS₂Studied MaterialExpand
DFT-derived monolayer MoS₂ supercell used to compute projected electric field, potential, and charge density for comparison with experiment.No measurements recordedSimulated Supercell DftMoS₂Studied MaterialExpand
Research paperExperimental CharacterizationComputational DFTImaging the electron charge density in monolayer MoS₂ at the Ångstrom scaleJoel Martis, Sandhya Susarla, Archith Rayabharam, Cong Su et al.2022·10.1017/S1431927619000497·arXiv:2210.09478AbstractFour-dimensional scanning transmission electron microscopy (4D-STEM) is used to image the projected electron charge density in monolayer MoS2. Simultaneously acquired ADF-STEM and CoM images are combined to separate nuclear and electronic contributions, and DFT-derived charge density is used to validate the experimental results. The work emphasizes the role of probe convolution and residual aberrations in interpreting charge-density maps at the atomic scale.Read more
Experimental monolayer 2H-MoS₂ specimen imaged by simultaneously acquired ADF-STEM and 4D-STEM CoM.1 characterization3 figuresMoS₂Studied MaterialExpand
DFT-derived monolayer MoS₂ supercell used to compute projected electric field, potential, and charge density for comparison with experiment.No measurements recordedSimulated Supercell DftMoS₂Studied MaterialExpand
Research paperExperimental CharacterizationComputational DFTImaging the electron charge density in monolayer MoS₂ at the Ångstrom scaleJoel Martis, Sandhya Susarla, Archith Rayabharam, Cong Su et al.2022·10.1017/S1431927619000497·arXiv:2210.09478AbstractFour-dimensional scanning transmission electron microscopy (4D-STEM) is used to image the projected electron charge density in monolayer MoS2. Simultaneously acquired ADF-STEM and CoM images are combined to separate nuclear and electronic contributions, and DFT-derived charge density is used to validate the experimental results. The work emphasizes the role of probe convolution and residual aberrations in interpreting charge-density maps at the atomic scale.Read more
Experimental monolayer 2H-MoS₂ specimen imaged by simultaneously acquired ADF-STEM and 4D-STEM CoM.1 characterization3 figuresMoS₂Studied MaterialExpand
DFT-derived monolayer MoS₂ supercell used to compute projected electric field, potential, and charge density for comparison with experiment.No measurements recordedSimulated Supercell DftMoS₂Studied MaterialExpand
Research paperExperimental CharacterizationComputational DFTImaging the electron charge density in monolayer MoS₂ at the Ångstrom scaleJoel Martis, Sandhya Susarla, Archith Rayabharam, Cong Su et al.2022·10.1017/S1431927619000497·arXiv:2210.09478AbstractFour-dimensional scanning transmission electron microscopy (4D-STEM) is used to image the projected electron charge density in monolayer MoS2. Simultaneously acquired ADF-STEM and CoM images are combined to separate nuclear and electronic contributions, and DFT-derived charge density is used to validate the experimental results. The work emphasizes the role of probe convolution and residual aberrations in interpreting charge-density maps at the atomic scale.Read more
Experimental monolayer 2H-MoS₂ specimen imaged by simultaneously acquired ADF-STEM and 4D-STEM CoM.1 characterization3 figuresMoS₂Studied MaterialExpand
DFT-derived monolayer MoS₂ supercell used to compute projected electric field, potential, and charge density for comparison with experiment.No measurements recordedSimulated Supercell DftMoS₂Studied MaterialExpand