Rapid collapse of spin waves in non-uniform phases of the second Landau level - Condensed Matter > Strongly Correlated ElectronsReport as inadecuate




Rapid collapse of spin waves in non-uniform phases of the second Landau level - Condensed Matter > Strongly Correlated Electrons - Download this document for free, or read online. Document in PDF available to download.

Abstract: The spin degree of freedom in quantum phases of the second Landau level isprobed by resonant light scattering. The long wavelength spin wave, whichmonitors the degree of spin polarization, is at the Zeeman energy in the fullyspin-polarized state at $ u$=3. At lower filling factors the intensity of theZeeman mode collapses indicating loss of polarization. A novel continuum oflow-lying excitations emerges that dominates near $ u$=8-3 and $ u$=5-2.Resonant Rayleigh scattering reveals that quantum fluids for $ u<3$ break upinto robust domain structures. While the state at $ u$=5-2 is considered to befully polarized, these results reveal unprecedented roles for spin degrees offreedom.



Author: Trevor D. Rhone, Jun Yan, Yann Gallais, Aron Pinczuk, Loren Pfeiffer, Ken West

Source: https://arxiv.org/







Related documents