Hidden $\mathrm{SU(4)}$ symmetry in bilayer quantum well at integer filling factors

V.I. Fal’ko^а, S.V. Iordanskii^б, A.B. Kashuba^б
^аLancaster University, Bailrigg, Lancaster, United Kingdom
^бИнститут теоретической физики им. Л.Д. Ландау, просп. Акад. Семенова 1а, Черноголовка, Московская обл., Ногинский р-н, 142432, Российская Федерация

Phase diagram of a bilayer quantum well at integer filling factors is established using the hidden symmetry method. Three phases: ferromagnetic, canted antiferromagnetic (CAP) and spin-singlet, have been found. We confirm early results of Das Sarma et al. Each phase violates the $\mathrm{SU(4)}$ hidden symmetry and is stabilized by the anisotropy interactions.

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English fulltext is available at DOI: 10.1070/1063-7869/44/10S/S09

PACS: 73.43.−f, 73.43.Cd, 71.70.−d (все)
DOI: 10.1070/1063-7869/44/10S/S09
URL: https://ufn.ru/ru/articles/2001/13/i/
Цитата: Fal’ko V I, Iordanskii S V, Kashuba A B "Hidden $\mathrm{SU(4)}$ symmetry in bilayer quantum well at integer filling factors" УФН 171 49–53 (2001)

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TY JOUR
TI Hidden $\mathrm{SU(4)}$ symmetry in bilayer quantum well at integer filling factors
AU Fal’ko, V. I.
AU Iordanskii, S. V.
AU Kashuba, A. B.
PB Успехи физических наук
PY 2001
JO Успехи физических наук
JF Успехи физических наук
JA Усп. физ. наук
VL 171
IS 13
SP 49-53
UR https://ufn.ru/ru/articles/2001/13/i/
ER https://doi.org/10.1070/1063-7869/44/10S/S09

English citation: Fal’ko V I, Iordanskii S V, Kashuba A B “Hidden $\mathrm{SU(4)}$ symmetry in bilayer quantum well at integer filling factors” Phys. Usp. 44 49–53 (2001); DOI: 10.1070/1063-7869/44/10S/S09