Two- and three-electron bubbles in AlxGa1-xAs / Al0.24Ga0.76As quantum wells

X. Fu, Q. Shi, Michael Zudov, G. C. Gardner, J. D. Watson, M. J. Manfra

Research output: Contribution to journalArticle

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Abstract

We report on transport signatures of eight distinct bubble phases in the N=3 Landau level of an AlxGa1-xAs/Al0.24Ga0.76As quantum well with x=0.0015. These phases occur near partial filling factors ν≈0.2(0.8) and ν≈0.3(0.7) and have M=2 and M=3 electrons (holes) per bubble, respectively. We speculate that a small amount of alloy disorder in our sample helps to distinguish these broken symmetry states in low-temperature transport measurements.

Original languageEnglish (US)
Article number161402
JournalPhysical Review B
Volume99
Issue number16
DOIs
StatePublished - Apr 3 2019

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Semiconductor quantum wells
bubbles
quantum wells
Electrons
broken symmetry
electrons
signatures
disorders
Temperature

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Two- and three-electron bubbles in AlxGa1-xAs / Al0.24Ga0.76As quantum wells. / Fu, X.; Shi, Q.; Zudov, Michael; Gardner, G. C.; Watson, J. D.; Manfra, M. J.

In: Physical Review B, Vol. 99, No. 16, 161402, 03.04.2019.

Research output: Contribution to journalArticle

Fu, X. ; Shi, Q. ; Zudov, Michael ; Gardner, G. C. ; Watson, J. D. ; Manfra, M. J. / Two- and three-electron bubbles in AlxGa1-xAs / Al0.24Ga0.76As quantum wells. In: Physical Review B. 2019 ; Vol. 99, No. 16.
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