6533b852fe1ef96bd12ab710
RESEARCH PRODUCT
Electron magneto-tunneling through single self-assembled InAs quantum dashes
Kenji ShibataEsa RäsänenEsa RäsänenNikola PascherThomas IhnKlaus EnsslinP. J. J. LuukkoS. SchnezKazuhiko Hirakawasubject
PhysicsRange (particle radiation)Spin statesCondensed matter physicsta114General EngineeringGeneral Physics and AstronomyDiamagnetismElectronAnisotropyQuantumQuantum tunnellingMagnetic fielddescription
We have investigated electron magneto-tunneling through single self-assembled InAs quantum dashes (QDHs) coupled to metal nanogap electrodes. The samples operate as single electron transistors and exhibit clear shell structures, reflecting the anisotropic shape of the QDHs. In high magnetic fields, the samples exhibit strongly orbital-dependent large diamagnetic shifts and large electron g-factors in the range |g| ~ 3–11. The strong level-to-level fluctuation of the g-factors implies the presence of strong spin–orbit interaction in this system. These properties suggest that InAs QDHs are promising for the manipulation of single-electron orbital/spin states by external electric/magnetic fields.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-03-28 | Applied Physics Express |