#
# arev:/usr/local/unicat/unireq/beamreq/req00116.txt
# UNICAT Member Beam Time Request  #116

# created Mon Jun 19 14:56:50 CDT 2000
#

collaboration:
	No

collaborator+Paul:
	on

days:
	6

description:
	Single crystal of Pb(Mg_2/3Nb_1/3)O_3 electroded with thin gold electrodes will be mounted in the HUBER cryostat.  Voltage up to 400 V is applied to the sample via high voltage power supply.
	In-situ measurements of the superlattice reflections in the anomalous mode near Pb LIII absorption edge (~13 keV) and Nb K edge (~18 keV)
	will allow the studies of the atomic displacements in question.  The goal is to understand the microstructure and physical nature of the ferroelectric relaxor behavior.
	
	

equipment+required:
	displex, mechanical pump

experiment:
	In-situ studies of the atomic displacements  in Pb(Mg_2/3Nb_1/3)O_3 single crystal with ab applied electric field.

foreign+nationals:
	Andrei Tkachuk ( have all the required paperwork up to date)

hazards:
	N/A

name:
	Andrei Tkachuk

nonmembers:
	

station:
	33ID-D

unacceptable+dates:
	July 1-31
	August 1-20



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