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Substrate effects for atomic chain electronics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Yamada, Toshishige |
| Copyright Year | 1998 |
| Description | A substrate for future atomic chain electronics, where adatoms are placed at designated positions and form atomically precise device components, is studied theoretically. The substrate has to serve as a two-dimensional template for adatom mounting with a reasonable confinement barrier and also provide electronic isolation, preventing unwanted coupling between independent adatom structures. For excellent structural stability, we demand chemical bonding between the adatoms and substrate atoms, but then good electronic isolation may not be guaranteed. Conditions are clarified for good isolation. Because of the chemical bonding, fundamental adatom properties are strongly influenced: a chain with group IV adatoms having two chemical bonds, or a chain with group III adatoms having one chemical bond is semiconducting. Charge transfer from or to the substrate atoms brings about unintentional doping, and the electronic properties have to be considered for the entire combination of the adatom and substrate systems even if the adatom modes are well localized at the surface. |
| File Size | 722989 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20020066764 |
| Archival Resource Key | ark:/13960/t1kh5ht87 |
| Language | English |
| Publisher Date | 1998-01-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Electrical Properties Atomic Interactions Atoms Templates Microminiaturization Nanostructures Devices Substrates Molecular Chains Molecular Electronics Nanofabrication Microminiaturized Electronic Devices Nanostructure Characteristics Chemical Bonds Excitation Charge Transfer Nanotechnology Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
