Abstract
We developed a method to eliminate the spurious solutions of the k·p Hamiltonian in the envelope function approximation applied to the quantized states of heterostructures by introducing an off-diagonal k 2 term. This results in a modification in the fourth and higher order terms in k of the band dispersion, which keeps the dispersion at the F point but modifies it at large k so that converts spurious states to the harmless evanescent ones. We show that the modification to the Hamiltonian leads to the monotonic behavior of the conduction band as a function of k and thus removes the spurious solutions in the calculations of confined states for all popular III-V compounds and their alloys.
Original language | English (US) |
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Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
Editors | M. Osinski, H. Amano, P. Blood |
Pages | 265-272 |
Number of pages | 8 |
Volume | 4986 |
DOIs | |
State | Published - 2003 |
Externally published | Yes |
Event | PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Physics and Simulation of Optoelectronic Devices XI - San Jose, CA, United States Duration: Jan 27 2003 → Jan 31 2003 |
Other
Other | PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Physics and Simulation of Optoelectronic Devices XI |
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Country/Territory | United States |
City | San Jose, CA |
Period | 1/27/03 → 1/31/03 |
Keywords
- Heterostructures
- Multiband Hamiltonian
- Spurious states
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics