We have studied the effect of an in-plane magnetic field B on a one-dimensional hole system in the ballistic regime created by surface gate confinement. We observed clearly the lifting of the spin degeneracy due to the Zeeman effect on the one dimensional subbands for B applied parallel to the channel. In contrast, no Zeeman splitting is detected for B applied perpendicular to the channel, revealing an extreme anisotropy of the effective Lande g-factor g*. We demonstrate that this anisotropy is a direct consequence of the one-dimensional confinement on a system with strong spin-orbit coupling.
@article{arxiv.cond-mat/0607357,
title = {Anisotropic Zeeman splitting in ballistic one-dimensional hole systems},
author = {R. Danneau and O. Klochan and W. R. Clarke and L. H. Ho and A. P. Micolich and M. Y. Simmons and A. R. Hamilton and M. Pepper and D. A. Ritchie and U. Zuelicke},
journal= {arXiv preprint arXiv:cond-mat/0607357},
year = {2009}
}
Comments
Submitted for publication in AIP Proceedings for the 28th International Conference on the Physics of Semiconductors (ICPS 28), Vienna, Austria