1995
DOI: 10.1103/physrevb.51.5138
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Abstract: At strong magnetic fields double-layer two-dimensional-electron-gas systems can form an unusual broken symmetry state with spontaneous interlayer phase coherence. In this paper we explore the rich variety of quantum and finite-temperature phase transitions associated with this broken symmetry. We describe the system using a pseudospin language in which the layer degree-of-freedom is mapped to a fictional spin 1/2 degree-of-freedom. With this mapping the spontaneous symmetry breaking is equivalent to that of a … Show more

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Cited by 662 publications
(939 citation statements)
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“…20,29,30 , we can derive a low-energy effective field theory for ν = 0 quantum Hall states by constructing the Lagrangian,…”
Section: Low-energy Effective Theory and Collective Modesmentioning
confidence: 99%
“…20,29,30 , we can derive a low-energy effective field theory for ν = 0 quantum Hall states by constructing the Lagrangian,…”
Section: Low-energy Effective Theory and Collective Modesmentioning
confidence: 99%
“…BLQH systems have not only the spin SU(2) but also the layer (pseudospin or ppin) SU(2) degrees of freedom. The interlayer interactions bring many interesting phenomena in BLQH systems [1]. For instance, skyrmion excitations arise not only in a spin space but also in a pseudospin space [2,3].…”
Section: Introductionmentioning
confidence: 99%
“…A skyrmion is a particle-like topologically nontrivial soliton 1 which is studied in a variety of research fields, especially in the condensed matter physics such as the quantum Hall effects [2][3][4][5][6] , the liquid crystals 7 , and the helical ferromagnets [8][9][10] . It is noted early that skyrmions in three dimensions (3D) have physical properties of baryons while skyrmions in two-dimensional (2D) play an important role in condensed matter systems.…”
Section: Introductionmentioning
confidence: 99%