Lee, Minchul, Choi, Mahn-Soo, Lopez, Rosa, Aguado, Ramon, Martinek, Jan, Zitko, Rok
We study a series-coupled double quantum dot in the Kondo regime modeled by the two-impurity Anderson model and find a new conduction-band mediated superexchange interaction that competes with Kondo...
Lee, Minchul, Hachiya, Marco O., Bernardes, E., Egues, J. Carlos, Loss, Daniel
We investigate the intrinsic spin Hall effect in two-dimensional electron gases in quantum wells with two subbands, where a new intersubband-induced spin-orbit coupling is operative. The bulk spin...
Interference of heavy holes in an Aharonov-Bohm ring (2009)
Stepanenko, Dimitrije, Lee, Minchul, Burkard, Guido, Loss, Daniel
We study the coherent transport of heavy holes through a one-dimensional ring in the presence of spin-orbit coupling. Spin-orbit interaction of holes, cubic in the in-plane components of momentum,...
Interference of heavy holes in an Aharonov-Bohm ring (2008)
Stepanenko, Dimitrije, Lee, Minchul, Burkard, Guido, Loss, Daniel
We study the coherent transport of heavy holes through a one-dimensional ring in the presence of spin-orbit coupling. Spin-orbit interaction of holes, cubic in the in-plane components of momentum,...
Josephson Effect through an isotropic magnetic molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule contains a magnetic atom, whose spin is assumed to be isotropic. It is...
Josephson Effect through an isotropic magnetic molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule contains a magnetic atom, whose spin is assumed to be isotropic. It is...
Josephson Effect through a Magnetic Metallofullerene Molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule depicts a metallofullerene where the spin of the magnetic atom inside the...
Josephson Effect through a Magnetic Metallofullerene Molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule depicts a metallofullerene where the spin of the magnetic atom inside the...
Josephson Effect through an isotropic magnetic molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule contains a magnetic atom, whose spin is assumed to be isotropic. It is...
Josephson Effect through an isotropic magnetic molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule contains a magnetic atom, whose spin is assumed to be isotropic. It is...
Josephson Effect through an isotropic magnetic molecule (2008)
Lee, Minchul, Jonckheere, Thibaut, Martin, Thierry
We investigate the Josephson effect through a molecular quantum dot magnet connected to superconducting leads. The molecule contains a magnetic atom, whose spin is assumed to be isotropic. It is...
Spin-orbit interaction in symmetric wells with two subbands (2006)
Bernardes, Esmerindo S., Schliemann, John, Lee, Minchul, Egues, J. Carlos, Loss, Daniel
We investigate the spin-orbit (s-o) interaction in two-dimensional electron gases (2DEGs) in quantum wells with two subbands. From the $8\times 8$ Kane model, we derive a new inter-subband-induced...
Spin filter using a semiconductor quantum ring side-coupled to a quantum wire (2005)
We introduce a new spin filter based on spin-resolved Fano resonances due to spin-split levels in a quantum ring (QR) side-coupled to a quantum wire (QW). Spin-orbit coupling inside the QR, together...
Charge and spin density modulations in semiconductor quantum wires (2005)
Lee, Minchul, Bruder, Christoph
We investigate static charge and spin density modulation patterns along a ferromagnet/semiconductor single junction quantum wire in the presence of spin-orbit coupling. Coherent scattering theory is...
Comment on "Josephson Current through a Nanoscale Magnetic Quantum Dot" (2005)
Choi, Mahn-Soo, Lee, Minchul, Kang, Kicheon, Belzig, Wolfgang
Comment on "Josephson Current through a Nanoscale Magnetic Quantum Dot" (2004)
Choi, Mahn-Soo, Lee, Minchul, Kang, Kecheon, Belzig, W.
In a recent work [Phys. Rev. Lett. 93, 047002 (2004)], Siano and Egger (SE) studied Josephson current through a quantum dot in the Kondo regime using the quantum Monte Carlo (QMC) method. Several of...
Ballistic spin currents in mesoscopic metal/In(Ga)As/metal junctions (2004)
We investigate the ballistic spin transport through a two-dimensional mesoscopic metal/semiconductor/metal double junctions in the presence of spin-orbit interactions. It is shown that \emph{real}...
Probing spin and orbital Kondo effects with a mesoscopic interferometer (2004)
Lopez, Rosa, Sanchez, David, Lee, Minchul, Choi, Mahn-Soo, Simon, Pascal, Hur, Karyn Le
We investigate theoretically the transport properties of a closed Aharonov-Bohm interferometer containing two quantum dots in the strong coupling regime. We find two distinct physical scenarios...
Phase Transitions in Models for Coupled Charge-Density Waves (2004)
Lee, Minchul, Kim, Eun-Ah, Lim, Jong Soo, Choi, M. Y.
Various phase transitions in models for coupled charge-density waves are investigated by means of the $\epsilon$-expansion, mean-field theory, and Monte Carlo simulations. At zero temperature the...
Kondo effect and Josephson current through a quantum dot between two superconductors (2004)
Choi, Mahn-Soo, Lee, Minchul, Kang, Kicheon, Belzig, Wolfgang
We investigate the supercurrent through a quantum dot for the whole range of couplings using the numerical renormalization group method. We find that the Josephson current switches abruptly from a p-...
Kondo Effect and Josephson Current through a Quantum Dot between Two Superconductors (2003)
Choi, Mahn-Soo, Lee, Minchul, Kang, Kicheon, Belzig, W.
We investigate the supercurrent through a quantum dot for the whole range of couplings using the numerical renormalization group method. We find that the Josephson current switches abruptly from a...
Correspondences and Quantum Description of Aharonov-Bohm and Aharonov-Casher Effects (2003)
We establish systematic consolidation of the Aharonov-Bohm and Aharonov-Casher effects including their scalar counterparts. Their formal correspondences in acquiring topological phases are revealed...
Quantum Phase Transitions and Persistent Currents in Josephson-Junction Ladders (2003)
Lee, Minchul, Choi, Mahn-Soo, Choi, M. Y.
In this work we study quantum phase transitions and persistent currents in capacitively coupled one-dimensional Josephson-junction arrays. We will focus particularly on the roles of exciton-like...
Lee, Minchul, Jeon, Gun Sang, Choi, M. Y.
We consider interacting electrons in a two-dimensional quantum Coulomb glass and investigate by means of the Hartree-Fock approximation the combined effects of the electron-electron interaction and...
Renormalization-group study of gate charge effects in Josephson-junction chains (2000)
Choi, M. Y., Rhee, Sung Wu, Lee, Minchul, Choi, J.
We study the quantum phase transition in a chain of superconducting grains, coupled by Josephson junctions, with emphasis on the effects of gate charges induced on the grains. At zero temperature the...
Charge Frustration Effects in Capacitively Coupled Two-Dimensional Josephson-Junction Arrays (1999)
Lee, Minchul, Choi, Mahn-Soo, Choi, M. Y.
We investigate the quantum phase transitions in two capacitively coupled two-dimensional Josephson-junction arrays with charge frustration. The system is mapped onto the S=1 and $S=1/2$ anisotropic...