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|Abstract:||We have studied the microwave spectra of a wide quantum well for Landau level fillings, ν, just below 1/2, under conditions where the ν=1/2 fractional quantum Hall effect (FQHE) is present. One resonance in the spectra exhibits intensity variations with ν in striking agreement with that expected for a pinning mode of a Wigner solid of quasiholes of this FQHE state. This resonance is also quite sensitive to asymmetrization of the growth-direction charge distribution in the quantum well by gate bias. Another resonance in the spectra is associated with a different bilayer Wigner solid that also exists at much lower ν than the 1/2 FQHE, and that appears to coexist with the 1/2 quasihole solid.|
|Electronic Publication Date:||20-Jan-2017|
|Citation:||Hatke, AT, Liu, Yang, Engel, LW, Pfeiffer, LN, West, KW, Baldwin, KW, Shayegan, M. (2017). Microwave spectroscopic observation of a Wigner solid within the fractional quantum Hall effect. Physical Review B, 95 (4), 10.1103/PhysRevB.95.045417|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Physical Review B|
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