Metamorphosis of the Quantum Hall Ferromagnet at \(\nu = 2/5\)

We report on the dramatic evolution of the quantum Hall ferromagnet in the fractional quantum Hall regime at \(\nu = 2/5\) filling. A large enhancement in the characteristic timescale gives rise to a dynamical transition into a novel quantized Hall state. The observed Hall state is determined to be...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2003-07
Main Authors: Chen, Michelle, Kang, Woowon, Wegscheider, Werner
Format: Article
Language:English
Subjects:
Ferromagnetism
Quantum theory
Temperature dependence
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report on the dramatic evolution of the quantum Hall ferromagnet in the fractional quantum Hall regime at \(\nu = 2/5\) filling. A large enhancement in the characteristic timescale gives rise to a dynamical transition into a novel quantized Hall state. The observed Hall state is determined to be a zero-temperature phase distinct from the spin-polarized and spin-unpolarized \(\nu = 2/5\) fractional quantum Hall states. It is characterized by a strong temperature dependence and puzzling correlation between temperature and time.
ISSN:2331-8422
DOI:10.48550/arxiv.0307711