Published July 16, 2008
| Version v1
Journal article
Scanning tunneling microscopy images of a triangular quantum dot of InAs
Creators
- 1. Faculty of Materials Sciences, Graduate School, Saitama Institute of Technology, 1690 Fusaiji, Fukaya-City, 369-0293 Saitama (Japan)
Description
On the basis of a simple one-particle model we derived eigenstates and eigenenergies of electrons confined in an equilateral triangular quantum dot of InAs (111)A surface. Considering two subbands formed by the band bending in the InAs surface, we explained STM images observed in the differential conductance mode. It is pointed out that contributions from two subbands are indispensable for analyzing the STM images on the InAs quantum dot. Moreover, it is shown that reduction in the subband energy level induced by an applied bias voltage plays an important role in obtaining proper STM images
Availability note (English)
Available from http://dx.doi.org/10.1088/0953-8984/20/28/285220Additional details
Identifiers
- DOI
- 10.1088/0953-8984/20/28/285220;
- PII
- S0953-8984(08)67933-3;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 20
- Journal Issue
- 28
- Journal Page Range
- [6 p.]
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40029725
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BENDING; EIGENSTATES; ELECTRIC POTENTIAL; ELECTRONS; ENERGY LEVELS; FREE ENERGY; INDIUM ARSENIDES; PARTICLE MODELS; QUANTUM DOTS; REDUCTION; SCANNING TUNNELING MICROSCOPY; SURFACES
- Descriptors DEC
- ARSENIC COMPOUNDS; ARSENIDES; CHEMICAL REACTIONS; DEFORMATION; ELEMENTARY PARTICLES; ENERGY; FERMIONS; INDIUM COMPOUNDS; LEPTONS; MATHEMATICAL MODELS; MICROSCOPY; NANOSTRUCTURES; PHYSICAL PROPERTIES; PNICTIDES; THERMODYNAMIC PROPERTIES