Published July 26, 2010
| Version Published
Journal Article
Open
Time dependent behavior of a localized electron at a heterojunction boundary of graphene
-
1.
California Institute of Technology
-
2.
Korea Advanced Institute of Science and Technology
Abstract
We develop a finite-difference time-domain (FDTD) method for simulating the dynamics of graphene electrons, denoted GraFDTD. We then use GraFDTD to study the temporal behavior of a single localized electron wave packet, showing that it exhibits optical-like dynamics including the Goos–Hänchen effect [ F. Goos and H. Hänchen, Ann. Phys. 436, 333 (1947)] at a heterojunction, but the behavior is quantitatively different than for electromagnetic waves. This suggests issues that must be addressed in designing graphene-based electronic devices analogous to optical devices. GraFDTD should be useful for studying such complex time-dependent behavior of a quasiparticle in graphene.
Additional Information
© 2010 American Institute of Physics. Received 11 February 2010; accepted 25 May 2010; published online 29 July 2010. This work was supported by DOE LMI EFRC under Grant No. DE-SC0001293 (M.S.J. and H.A.A.) and the Functional Engineered Nano Architectronics (FENA) via the Microelectronics Advanced Research Corporation (MARCO) with the prime award (2009–NT-2048) at UCLA (PI Kang Wang). H.J. and W.A.G. also acknowledge support from the WCU programs through NRF of Korea funded by the MEST (Grant No. R31-2008-000-10055-0). Two of the authors (M.S.J. and H.K.) contributed equally to this work.Attached Files
Published - Jang2010p11281Appl_Phys_Lett.pdf
Files
Jang2010p11281Appl_Phys_Lett.pdf
Files
(241.5 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:e9705c26e4e874760bc51b2f97f7cd79
|
241.5 kB | Preview Download |
Additional details
Identifiers
- Eprint ID
- 19807
- Resolver ID
- CaltechAUTHORS:20100907-141554023
Funding
- Department of Energy (DOE)
- DE-SC0001293
- Microelectronics Advanced Research Corporation (MARCO)
- 2009-NT-2048
- Ministry of Education, Science and Technology (Korea)
- R31-2008-000-10055-0
Dates
- Created
-
2010-09-15Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field