TY  - JOUR
AU  - Bringer, A.
AU  - Schäpers, Th.
TI  - Spin precession and modulation in ballistic cylindrical nanowires due to the Rashba effect
JO  - Physical review / B
VL  - 83
IS  - 11
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-14603
SP  - 115305
PY  - 2011
N1  - We thank N. Demarina (Forschungszentrum Julich) for fruitful discussions regarding the Schrodinger-Poisson solver in cylindrical systems and U. Zulicke (Massey University, New Zealand) and R. Winkler (Northern Illinois University, USA) for discussions on the Rashba effect at semiconductor interfaces. Furthermore, we acknowledge the support of or work by S. Blugel and D. Grutzmacher (Forschungszentrum Julich). This work was supported by the Deutsche Forschungsgemeinschaft through Grant No. FOR 912.
AB  - The spin precession in a cylindrical semiconductor nanowire due to Rashba spin-orbit coupling has been investigated theoretically using an InAs nanowire containing a surface two-dimensional electron gas as a model. The eigenstates, energy-momentum dispersion, and the energy-magnetic field dispersion relation are determined by solving the Schrodinger equation in a cylindrical symmetry. The combination of states with the same total angular momentum but opposite spin orientation results in a periodic modulation of the axial spin component along the axis of the wire. Spin-precession about the wires axis is achieved by interference of two states with different total angular momentum. Because a superposition state with exact opposite spin precession exists at zero magnetic field, an oscillation of the spin orientation can be obtained. If an axially oriented magnetic field is applied, the spin gains an additional precessing component.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000288004000011
DO  - DOI:10.1103/PhysRevB.83.115305
UR  - https://juser.fz-juelich.de/record/14603
ER  -