In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 37, No. 6S ( 1998-06-01), p. 3805-
Abstract:
Some remarkable features of the two-terminal
transmission probability T ( E ) of artificial nano-circuits are clarified.
These include a switching effect of T ( E )
caused by applying a magnetic field to the system, as well as large induced loop currents in the internal ring parts.
The electric current passing through the nano-circuits is calculated by the Landauer-Büttiker formalism
using the Green's function method and the tight-binding scattering matrix method.
The two-terminal conductance vanishes when the interference of the electron wave
makes the value of T ( E ) zero,
or when the energy of the incident electron corresponds to the degenerate energy levels of the circuit
satisfying a certain condition of the wavefunctions. It is also found that a large loop current in the nano-circuit is
induced by a small source-drain current for a particular energy region.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.37.3805
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1998
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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