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Tunneling spectroscopy of energy levels in wide quantum wells in tilted magnetic fields

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<mark>Journal publication date</mark>15/04/1992
<mark>Journal</mark>Physical Review B
Issue number15
Number of pages3
Pages (from-to)8749-8751
<mark>Original language</mark>English


Using resonant-tunneling spectroscopy, we have studied the energy levels in wide quantum wells (of 60 and 120 nm well width) of double-barrier resonant-tunneling devices in high magnetic fields with a small tilt angle-alpha with respect to the growth axis. In the limit of high magnetic fields, the resonance spacing between successive levels becomes independent of the magnetic field and is cos2-alpha times the spacing at zero field. In this limit, these results can be understood quasiclassically by considering the motion of the particles to follow the magnetic-field lines inside of a quantum well with an effective thickness w/cos-alpha.