TY - JOUR
T1 - Magneto-optics of two-dimensional hole systems in the extreme quantum limit
AU - Butov, L. V.
AU - Zrenner, A.
AU - Shayegan, M.
AU - Abstreiter, G.
AU - Manoharan, H. C.
PY - 1994
Y1 - 1994
N2 - We report photoluminescence measurements on low-disorder, dilute (p6×1010 cm-1), two-dimensional (2D) hole systems in GaAs/AlxGa1-xAs quantum wells at low Landau-level filling factors (). Near and below =1/3 we observe two additional lines in the spectra. One of these, appearing 0.8 meV below the main line, is similar to a line observed in 2D electron systems at very low (1/5), which has been attributed to the condensation of 2D electrons into a Wigner solid. The other, observed 4 meV below the main line, has no apparent counterpart in 2D electron systems. We interpret the data as consistent with the magnetic-field-induced localization of 2D holes, possibly into a pinned Wigner solid state.
AB - We report photoluminescence measurements on low-disorder, dilute (p6×1010 cm-1), two-dimensional (2D) hole systems in GaAs/AlxGa1-xAs quantum wells at low Landau-level filling factors (). Near and below =1/3 we observe two additional lines in the spectra. One of these, appearing 0.8 meV below the main line, is similar to a line observed in 2D electron systems at very low (1/5), which has been attributed to the condensation of 2D electrons into a Wigner solid. The other, observed 4 meV below the main line, has no apparent counterpart in 2D electron systems. We interpret the data as consistent with the magnetic-field-induced localization of 2D holes, possibly into a pinned Wigner solid state.
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U2 - 10.1103/PhysRevB.49.14054
DO - 10.1103/PhysRevB.49.14054
M3 - Article
AN - SCOPUS:0000342954
SN - 0163-1829
VL - 49
SP - 14054
EP - 14057
JO - Physical Review B
JF - Physical Review B
IS - 19
ER -