####################################################
# Peter Czoschke <czoschke@mrl.uiuc.edu>
# requesting 6 days, at minimum=4 days
# beamline 33ID, "Quantum Size Effects in ultrathin films of Pb/Si(111)"
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# top:/home/www/beamtime-requests/req00318.txt
# UNICAT Member Beam Time Request  #318
# created Fri Dec 06 16:06:59 CST 2002
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beamline:
	33ID

collaboration:
	Yes

collaborator+Hawoong:
	on

contact:
	czoschke@mrl.uiuc.edu

days:
	6

description:
	The quantized electronic states in ultrathin films can lead to interesting
	structural and growth properties.  The Pb/Si(111) system exhibits such effects
	(often referred to as Quantum Size Effects, or QSE) and has been
	recently studied with a variety of techniques including STM and SPA-LEED.
	However, the exact nature of the effects of QSE on the system are
	still somewhat debatable.  We propose using surface x-ray diffraction
	as a complementary technique to what has been used so far.  In the
	proposed experiment, the structure and growth behavior of the system
	would be studied using the surface diffraction chamber in 33ID-E.
	
	Please break up the time into two runs of 2-3 days each to allow for
	sample change.  Thanks.

equipment+required:
	

experiment:
	Quantum Size Effects in ultrathin films of Pb/Si(111)

foreign+nationals:
	

hazards:
	Liquid Nitrogen will be needed

minimumdays:
	4

name:
	Peter Czoschke

nonmembers:
	

unacceptable+dates:
	February 14-16,21-28
	March 1-15


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