g-Factor Tuning and Manipulation of Spins by an Electric Current
Zbyslaw Wilamowski, Hans Malissa, Friedrich Schäffler, Wolfgang Jantsch
Abstract
We investigate the Zeeman splitting of two-dimensional electrons in an asymmetric silicon quantum well, by electron-spin-resonance (ESR) experiments. Applying a small dc current we observe a shift in the resonance field due to the additional current-induced Bychkov-Rashba (BR) type of spin-orbit (SO) field. This finding demonstrates SO coupling in the most straightforward way: in the presence of a transverse electric field the drift velocity of the carriers imposes an effective SO magnetic field. This effect allows selective tuning of the g-factor by an applied dc current. In addition, we show that an ac current may be used to induce spin resonance very efficiently.
Create a lesson
Related papers
Temperature Dependence of the Refractive Index for AlAsGaSb
Helena Janowska, Wojciech Charaszkiewicz, Maja Wasiluk et al.
Chiral-symmetry breaking and degeneracy in Koch fractal geometries
L. L. Lage, A. Latgé
Dynamical backaction in nanoscale superfluid electromechanics
Marek Talíř, Filip Novotný, Balázs Szalai et al.
Magnonic Combinatorial Memory based on a network of coupled active ring circuits
Mykhaylo Balinskiy, Paulo Julio, Jeffrey Vargas et al.
Non-Hermitian Skin Effect from Radiative Coupling in a Reciprocal Chiral Medium
Kin Hung Fung, Changhao Meng, Yixin Xiao et al.
Landau Theory for Commensurate Charge-Density Waves Coupled to Uniform Lattice Deformation
Keiji Nakatsugawa, Toshiyuki Fujii, Satoshi Tanda