Back to Search
Start Over
$\nu=1/2$ Fractional Quantum Hall Effect in Tilted Magnetic Fields
- Publication Year :
- 2014
-
Abstract
- Magnetotransport measurements on two-dimensional electrons confined to wide GaAs quantum wells reveal a remarkable evolution of the ground state at filling factor $\nu=1/2$ as we tilt the sample in the magnetic field. Starting with a compressible state at zero tilt angle, a strong $\nu=1/2$ fractional quantum Hall state appears at intermediate angles. At higher angles an insulating phase surrounds this state and eventually engulfs it at the highest angles. This evolution occurs because the parallel component of the field renders the charge distribution increasingly bilayer-like.
- Subjects :
- Physics
Condensed matter physics
Field (physics)
Condensed Matter - Mesoscale and Nanoscale Physics
Filling factor
Quantum Hall effect
Condensed Matter Physics
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Electronic, Optical and Magnetic Materials
Magnetic field
Condensed Matter - Strongly Correlated Electrons
Quantum spin Hall effect
Fractional quantum Hall effect
Ground state
Quantum well
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....d547439abe6b92e4fdd1db227d2013b8