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# Takeshi Egami <egami@seas.upenn.edu>
# requesting 7 days, at minimum=5 days
# beamline 33ID, "Charge inhomogeniety in the cuprates"
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# top:/home/www/beamtime-requests/req00385.txt
# UNICAT Member Beam Time Request  #385
# created Sun Mar 16 16:21:38 CST 2003
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beamline:
	33ID

collaboration:
	No

collaborator+Paul:
	on

contact:
	egami@seas.upenn.edu

days:
	7

description:
	Anomalous dispersion f' will be determined as a function of q by measuring the diffuse scattering intensity as a function of the incident energy in the vicinity of the Cu absorption edge.  The sample is a detwinned YBCO single crystal.  The measurement will be made at several temperatures, below and above Tc = 93 K.  If the electronic structure is inhomogeneous, as the STM results suggest, then for q > qc we should see the two-phase behavior and for q < qc one phase.

equipment+required:
	displex, AMPTEK detector, intrinsic Ge detector.

experiment:
	Charge inhomogeniety in the cuprates

foreign+nationals:
	J.-H. Chung, E. Mamontov, P. Piekarz, F. Stercel

hazards:
	None

minimumdays:
	5

name:
	Takeshi Egami

nonmembers:
	None

unacceptable+dates:
	May 20 - June 20


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