Transition from quantum Hall to compressible states in the second Landau level: new light on the $ν$=5/2 enigma

Details Transition from quantum Hall to compressible states in the second Landau level: new light on the $ν$=5/2 enigma Transition from quantum Hall to compressible states in the second Landau level: new light on the $ν$=5/2 enigma

1998-09-01

arxiv.org/abs/cond-mat/9809024v1

Phys. Rev. Lett. 80, 1505 (1998)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

This paper has already appeared in PRL, but has not been on the web

Scientific paper

10.1103/PhysRevLett.80.1505

Quantum Hall states at filling fraction $\nu$=5/2 are examined by numerical diagonalization. Spin-polarized and -unpolarized states of systems with $N\le 18$ electrons are studied, neglecting effects of Landau level mixing. We find that the ground state is spin polarized. It is incompressible and has a large overlap with paired states like the Pfaffian. For a given sample, the energy gap is about 11 times smaller than at $\nu$=1/3. Evidence is presented of phase transitions to compressible states, driven by the interaction strength at short distance. A reinterpretation of experiments is suggested.

Affiliated with

Also associated with

No associations

Rating

Transition from quantum Hall to compressible states in the second Landau level: new light on the $ν$=5/2 enigma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Transition from quantum Hall to compressible states in the second Landau level: new light on the $ν$=5/2 enigma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition from quantum Hall to compressible states in the second Landau level: new light on the $ν$=5/2 enigma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-263529