Abstract
The intense interest over the last few years in the quantum Hall effect[1], occuring in the 2-D electron gas (2DEG), has been sustained largely by electronic transport measurements. For example, the prediction of a gap in the spectrum of elementary excitations of the fractionally quantized 2DEG has been tested only via observation of activated conductivity. No spectroscopic measurement of the gap has been made. We outline here a new phonon spectroscopy technique for the study of the 2-D electron gas and present data on the integrally quantized 2DEG.
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References
For a recent review see H.L. Stornier, Festkorperprobleme, Adv. in Sol. State Phys. XXIV, 25 (1983) ed. P. Grosse, Vieweg, Braunschwieg
H.J. Maris, Rev. Mod. Phys. 49, 341 (1977)
R. C. Dynes and V. Narayanamurti, Phys. Rev. B, 12, 1720 (1975)
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© 1986 Springer-Verlag Berlin Heidelberg
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Eisenstein, J.P., Narayanamurti, V., Stormer, H.L., Cho, A.Y., Hwang, J.C.M. (1986). Quantum Hall Effect Experiments Using Ballistic Phonons. In: Anderson, A.C., Wolfe, J.P. (eds) Phonon Scattering in Condensed Matter V. Springer Series in Solid-State Sciences, vol 68. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82912-3_111
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DOI: https://doi.org/10.1007/978-3-642-82912-3_111
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-82914-7
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