We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Tunneling spectroscopy of energy levels in wide...
View graph of relations

« Back

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

Research output: Contribution to journalComment/debate


<mark>Journal publication date</mark>15/04/1992
<mark>Journal</mark>Physical Review B
Number of pages3
<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.