Effect of in-plane magnetic field on magnetic phase transitions in nu=2 bilayer quantum Hall systems

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dc.creatorYang, Min-Fong
dc.creatorChang, Ming-Che
dc.date1999-08-14
dc.date.accessioned2026-07-07T06:26:22Z
dc.date.available2026-07-07T06:26:22Z
dc.descriptionBy using the effective bosonic spin theory, which is recently proposed by Demler and Das Sarma [ Phys. Rev. Lett. 82, 3895 (1999) ], we analyze the effect of an external in-plane magnetic field on the magnetic phase transitions of the bilayer quantum Hall system at filling factor nu=2. It is found that the quantum phase diagram is modified by the in-plane magnetic field. Therefore, quantum phase transitions can be induced simply by tilting the magnetic field. The general behavior of the critical tilted angle for different layer separations and interlayer tunneling amplitudes is shown. We find that the critical tilted angles being calculated agree very well with the reported values. Moreover, a universal critical exponent for the transition from the canted antiferromagnetic phase to the ferromagnetic phase is found to be equal to 1/2 within the present effective theory.
dc.descriptionRevTeX, 4 pages with 3 EPS figures included
dc.identifierhttps://arxiv.org/abs/cond-mat/9908211
dc.identifierhttp://arxiv.org/abs/cond-mat/9908211
dc.identifierPhys. Rev. B 60, R13985 (1999)
dc.identifierdoi:10.1103/PhysRevB.60.R13985
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97087
dc.subjectMesoscale and Nanoscale Physics
dc.titleEffect of in-plane magnetic field on magnetic phase transitions in nu=2 bilayer quantum Hall systems
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