####################################################
# John Budai <budaijd@ornl.gov>
# requesting 4 days, at minimum=3 days
# beamline 34ID-E, Microstructure of K(Ta,Nb)O3 films
# instrument 34ID-E microbeam
####################################################
# top:/home/www/beamtime-requests/req00610.txt
# UNICAT Member Beam Time Request  #610
# created Thu Apr 22 11:38:00 CDT 2004
####################################################

beamline:
	34ID-E

collaboration:
	No

collaborator_Wenjun:
	ON

contact:
	budaijd@ornl.gov

days:
	4

description:
	X-ray microdiffraction will be used to investigate the effect of film thickness and epitaxial strains on the local microstructure introduced by phase transitions in K(Ta,Nb)O3 films and KTaO3/ KNbO3 superlattices.  Domain microstructure in samples with varying thickness or superlattice periodicity across the substrate will be examined as a function of temperature in order to provide a controlled comparison.  The structural results will be correlated with ferroelectric properties.  In addition, the twin microstructure and local grain orientations (colony formation) of K(Ta,Nb)O3 films grown on textured metal and other polycrystalline substrates will be examined.

equipment_required:
	

experiment:
	Microstructure of K(Ta,Nb)O3 films

foreign_nationals:
	

hazards:
	A small (< 1"), low-temperature (<400C), low-power (<15V, <3 amp) sample heating stage will be used.

instrument:
	34ID-E microbeam

instrument_other:
	

minimumdays:
	3

name:
	John Budai

nonmembers:
	

unacceptable_dates:
	May 25 – July 5; Aug 15 – Aug 25

z34ID_change_undulator:
	yes

z34ID_details:
	No

z34ID_on_axis:
	no

z34ID_parasitic:
	no

z34ID_taper:
	yes


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