Unknown

Dataset Information

0

Demonstration of electron focusing using electronic lenses in low-dimensional system.


ABSTRACT: We report an all-electric integrable electron focusing lens in n-type GaAs. It is shown that a pronounced focusing peak takes place when the focal point aligns with an on-chip detector. The intensity and full width half maximum (FWHM) of the focusing peak are associated with the collimation of injected electrons. To demonstrate the reported focusing lens can be a useful tool, we investigate the characteristic of an asymmetrically gate biased quantum point contact with the assistance of a focusing lens. A correlation between the occurrence of conductance anomaly in low conductance regime and increase in FWHM of focusing peak is observed. The correlation is likely due to the electron-electron interaction. The reported electron focusing lens is essential for a more advanced electron optics device.

SUBMITTER: Yan C 

PROVIDER: S-EPMC7018971 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC4410646 | biostudies-literature
| S-EPMC4595752 | biostudies-literature
| S-EPMC6062332 | biostudies-literature
| S-EPMC8376939 | biostudies-literature
| S-EPMC5897365 | biostudies-literature
| S-EPMC6060042 | biostudies-literature
| S-EPMC8814190 | biostudies-literature
| S-EPMC4751468 | biostudies-other
| S-EPMC5551270 | biostudies-literature
| S-EPMC6645250 | biostudies-literature