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CATEGORIES:Semiconductor Physics
SUMMARY:A brief introduction to AlAs quantum wells - Dr. C
 hristine Nicoll (Semiconductor Physics Group\, Cav
 endish Laboratory)
DTSTART;TZID=Europe/London:20060522T141500
DTEND;TZID=Europe/London:20060522T151500
UID:TALK5042AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/5042
DESCRIPTION:I aim to present a basic introduction to AlAs/AlGa
 As quantum wells\, in which\nelectrons can be conf
 ined to the indirect-band-gap material AlAs. In th
 is\nway\, without departing from the familiar and 
 lattice-matched system of\nGaAs/AlGaAs/AlAs\, we c
 an produce a 2DEG in which the electrons have\ndif
 ferent parameters from those in the conventional G
 aAs/AlGaAs 2DEG. Within\nthe group\, we have devel
 oped the capability to grow AlAs quantum wells wit
 h\nelectron mobilities that approach the best repo
 rted to date. I will show\nsome of the results of 
 electrical characterization of our wells\, and add
 ress\nsome of the technological issues related to 
 their growth\, fabrication\, and\nmeasurement.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Departm
 ent of Physics
CONTACT:K DAS GUPTA
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