Finite-temperature phase transitions in $ν=2$ bilayer quantum Hall systems

Simple item page
dc.creatorYang, Min-Fong
dc.creatorChang, Ming-Che
dc.date1999-09-20
dc.date.accessioned2026-07-07T06:26:22Z
dc.date.available2026-07-07T06:26:22Z
dc.descriptionIn this paper, the influence of an in-plane magnetic field B_\parallel on the finite-temperature phase transitions in nu=2 bilayer quantum Hall systems are examined. It is found that there can exist two types of finite-temperature phase transitions. The first is the Kosterlitz-Thouless (KT) transitions, which can have an unusual non-monotonic dependence on B_\parallel; the second type originates from the crossing of energy levels and always increases with B_\parallel. Based on these results, we point out that the threshold temperature observed in the inelastic light scattering experiments cannot be the KT transition temperature, because the latter shows a totally different B_\parallel-dependence as compared with the experimental observation. Instead, it should be the level-crossing temperature, which we found agrees with the B_\parallel-dependence observed. Moreover, combining the knowledge of these two transition temperatures, a complete finite-temperature phase diagram is presented.
dc.descriptionRevTeX, 5 pages with 3 EPS figures included
dc.identifierhttps://arxiv.org/abs/cond-mat/9909282
dc.identifierhttp://arxiv.org/abs/cond-mat/9909282
dc.identifierPhys. Rev. B 61, R2429 (2000)
dc.identifierdoi:10.1103/PhysRevB.61.R2429
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97088
dc.subjectMesoscale and Nanoscale Physics
dc.titleFinite-temperature phase transitions in $ν=2$ bilayer quantum Hall systems
dc.typetext

Files

Collections

arXiv