Time Reversal of a Pseudospin: General Properties and Application to Graphene (2009)
Pseudo-spin degrees of freedom can be categorized in two types according to their behavior under time reversal. One type exhibits the behavior of ordinary spin whose three Cartesian components are...
Spin transport and bipolaron density in organic polymers (2009)
Ingenhoven, P., Egger, R., Zülicke, U.
We present a theory for spin-polarized transport through a generic organic polymer connected to ferromagnetic leads with arbitrary angle theta between their magnetization directions, taking into...
Rotational Fluxons of Bose-Einstein Condensates in Coplanar Double-Ring Traps (2008)
Brand, J., Haigh, T. J., Zülicke, U.
Rotational analogs to magnetic fluxons in conventional Josephson junctions are predicted to emerge in the ground state of rotating tunnel-coupled annular Bose-Einstein condensates (BECs). Such...
Hole spin relaxation in $p$-type GaAs quantum wires (2008)
Lü, C., Zülicke, U., Wu, M. W.
We investigate the spin relaxation of $p$-type GaAs quantum wires by numerically solving the fully microscopic kinetic spin Bloch equations. We find that the quantum-wire size influences the spin...
Trigonal Band Structure and Time-Reversal Invariance in Graphene (2008)
We present a symmetry analysis of the trigonal band structure in graphene. While the energy spectrum near the Fermi edge equals the spectrum of massless Dirac fermions, the transformational...
Lande-like formula for the g factors of hole-nanowire subband edges (2008)
Csontos, D., Zülicke, U., Brusheim, P., Xu, H. Q.
We have analyzed theoretically the Zeeman splitting of hole-quantum-wire subband edges. As is typical for any bound state, their g factor depends on both an intrinsic g factor of the material and an...
Nanospintronics meets relativistic quantum physics: Ubiquity of Zitterbewegung effects (2007)
Zülicke, U., Winkler, R., Bolte, J.
We present a unified description of zitterbewegung-like phenomena for electron and hole systems showing Rashba spin splitting as well as for electrons in single-layer and bilayer graphene. The former...
Oscillatory multiband dynamics of free particles: The ubiquity of zitterbewegung effects (2006)
Winkler, R., Zülicke, U., Bolte, Jens
In the Dirac theory for the motion of free relativistic electrons, highly oscillatory components appear in the time evolution of physical observables such as position, velocity, and spin angular...
Ring-shaped Andreev Billiards in quantizing magnetic fields (2005)
Cserti, J., Polinák, P., Palla, G., Zülicke, U., Lambert, C. J.
Two-dimensional hole precession in an all-semiconductor spin field effect transistor (2005)
Pala, M. G., Governale, M., König, J., Zülicke, U., Iannaccone, G.
Eroms, Jonathan, Weiss, Dieter, DeBoeck, J., Borghs, G., Zülicke, U.
We have studied magnetotransport in arrays of niobium filled grooves in an InAs/AlxGa1- xSb heterostructure. The critical field of up to 2.6 T permits one to enter the quantum Hall regime. In the...
Ring-shaped Andreev billiards in quantizing magnetic fields. (2004)
Cserti, J., Polinák, P., Palla, G., Zülicke , U., Lambert, Colin J.
We present a detailed semiclassical study of a clean disk-shaped insulator–normal-metal–superconductor hybrid system in a magnetic field. It is based on an exact secular equation that we derived...
Eroms, J., Weiss, D., De Boeck, J., Borghs, G., Zülicke, U.
We have studied magnetotransport in arrays of niobium filled grooves in an InAs/AlGaSb heterostructure. The critical field of up to 2.6 T permits to enter the quantum Hall regime. In the...
Ring--Shaped Andreev Billiards in Quantizing Magnetic Fields (2003)
Cserti, J., Polinák, P., Palla, G., Zülicke, U., Lambert, C. J.
We present a detailed semiclassical study of a clean disk--shaped insulator--normal-metal--superconductor hybrid system in a magnetic field. It is based on an exact secular equation that we derived...
Andreev-Reflexion in S/2DES-Hybridstrukturen mit Rashba-Spin-Bahn-Kopplung. (2001)
Schroll, C., Zülicke, U., Schön, G.
65.Physikertagung gemeinsam mit der Frühjahrstagung des Arbeitskreises Festkörperphysik der DPG, Hamburg, 26.-30. März 2001