Name of the Journal:
Proceedings of ICPS25, Springer Verlag
Proceedings, Conference, Subtitle or Series:
Proceedings of 25th International Conference on the Physics of Semiconductors, Osaka, Japan, 2000
Date of Pub:
April 2001
Year of Publication:
2001
Pages:
933
Abstract:
A strong anisotropy in the longitudinal resistivity of a 2D electron system has been observed at half-filled high Landau levels. We report on detailed Hartree-Fock calculations of the unidirectional charge density wave (UCDW) orientation energy induced by a tilted magnetic field. We find that stripes can orient both parallel or perpendicular to the in-plane field depending on the sample parameters and field strength. The close agreement between complex experimental data on different sample geometries and our theoretical results strongly support the UCDW picture as the origin of the observed anisotropies in high Landau levels.
arXiv.org Number: