The extreme quantum limit of 2D and 3D electron systems in semiconductor heterostructures

The extreme quantum limit of 2D and 3D electron systems in semiconductor heterostructures

Predictions of a magnetic field-induced superconducting state in semiconductors, at fields well above H/sub c/ values for normal and high-T/sub c/ superconductors, have motivated experiments in pulsed magnetic fields up to 700 T. We present results on low density 3D electron systems confined in high...

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Hauptverfasser: Kane, B.E., Dzurak, A.S., Facer, G.R., Clark, R.G., Starrett, R.P., Skougarevsky, A., Lumpkin, N.E., Brooks, J.S., Engel, L.W., Miura, N., Takamasu, T., Yokoi, H., Pfeiffer, L., West, K.W., Goettee, J.D., Rickel, D.G., Fowler, C.M., Tatsenko, O.M., Dolotenko, M.I.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Electromagnetic fields
Electromagnetic interference
Electrons
Gallium arsenide
Magnetic confinement
Magnetic fields
Magnetic noise
Noise generators
Semiconductor device noise
Superconductivity
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Zusammenfassung:Predictions of a magnetic field-induced superconducting state in semiconductors, at fields well above H/sub c/ values for normal and high-T/sub c/ superconductors, have motivated experiments in pulsed magnetic fields up to 700 T. We present results on low density 3D electron systems confined in high-quality Al/sub x/Ga/sub 1-x/As/GaAs parabolic quantum well structures, a prime candidate for this behaviour. The data show immunity to electromagnetic noise generated by the pulse for fields up to 500 T, however, eddy-current heating precluded the observation of field-induced superconductivity.
DOI:10.1109/COMMAD.1996.610103