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Diamagnetic response of Aharonov-Bohm rings: Impurity backward scatterings
Mun Dae Kim, Chul Koo Kim, Kyun Nahm
We report a theoretical calculation on the persistent currents of disordered normal-metal rings. It is shown that the diamagnetic responses of the rings in the vicinity of the zero…
Magnetic Polarization Currents in Double Quantum Dot Devices
Sam Young Cho, Ross H. McKenzie, Kicheon Kang +1
We investigate coherent electron transport through a parallel circuit of two quantum dots, each of which has a single tunable energy level. Electrons tunneling via each dot from th…
Impact of optical phonon scattering on magnetotransport in double-barrier heterostructures
Dae Kwan Kim, Patrick Roblin, Kwang-Sup Soh +1
The transport in double-barrier heterostructures of electrons interacting with longitudinal optical phonons in the presence of parallel electric and magnetic fields is analyzed the…
Effects of broken time-reversal symmetry on transmission zeros in the Aharonov-Bohm interferometer
Tae-Suk Kim, Sam Young Cho, Chul Koo Kim +1
In this paper, we study the behavior of the transmission zeros in the closed Aharonov-Bohm(AB) interferometer with an embedded scattering center in one arm and the corresponding ch…
Spin Fluctuation and Persistent Current in a Mesoscopic Ring Coupled to a Quantum Dot
Sam Young Cho, Kicheon Kang, Chul Koo Kim +1
We investigate the persistent current influenced by the spin fluctuations in a mesoscopic ring weakly coupled to a quantum dot. It is shown that the Kondo effect gives rise to some…