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Molecule States in a Gate Tunable Graphene Double Quantum Dot
Molecule States Gate Tunable Graphene Double Quantum Dot
2010/11/25
We have measured a graphene double quantum dot device with multiple electrostatic gates that
are used to enhance control to investigate it. At low temperatures the transport measurements
reveal hone...
We calculate the mesoscopic admittance G(!) of a double quantum dot, which can be measured
directly using microwave techniques. This quantity shows a rich behavior. In particular, it is directly sens...
Double quantum dot with tunable coupling in an enhancement-mode silicon metal-oxide semiconductor device with lateral geometry
Double quantum dot enhancement-mode silicon lateral geometry
2010/11/17
We present transport measurements of a tunable silicon metal-oxide-semiconductor double quantum dot device with lateral geometry. Experimentally extracted gate-to-dot capacitances show that the device...
Detection of spin injection into a double quantum dot: Violation of magnetic-field-inversion symmetry of nuclear polarization instabilities
Detection of spin injection double quantum dot: Violation nuclear polarization instabilities
2010/11/19
In mesoscopic systems with spin-orbit coupling, spin-injection into quantum dots at zero magnetic eld is expected under a wide range of conditions. However, up to now, a viable approach for experimen...
Cotunneling effects in GaAs vertical double quantum dot
Cotunneling effects GaAs vertical double quantum dot
2010/11/24
Semiconductor quantum dots have been a subject of intensive investigation over last two
decades. One reason is the proposal [1] to use spin state of electron in a quantum dot as a
quantum bit of inf...
Kondo and Fano Effect in Side Attached Double Quantum-Dot Molecule
Quantum dots Kondo effect Fano effect
2010/9/25
Electron tunneling through a double quantum dot molecule side attached to a quantum wire, in the Kondo regime, is studied. The mean-field finite-U slave-boson formalism is used to obtain the solution ...