####################################################
# Karapetrova Evguenia <jenia@anl.gov>
# requesting 5 days, at minimum=4 days
# beamline 33BM, Interfacial Structure of Ordered Oxide Bi-Layers.
# instrument 33BM-C fourc
####################################################
# top:/home/www/beamtime-requests/req01083.txt
# UNICAT Member Beam Time Request  #1083
# created Wed Dec 13 13:56:00 CST 2006
####################################################

apsrun:
	2007-01

beamline:
	33BM

collaboration:
	No

collaborator_Jenia:
	ON

contact:
	jenia@anl.gov

days:
	5

description:
	Bilayer ordered oxide structures grown by PLD or MBE are being aggressively studied due to the plethora of potential device applications [1,2]. Our present focus is on ferromagnetic related multilayer films. We are currently collaborating with sample growers at Northwestern Univervsity who have recently begun growing multi-bilayer [Fe3O4-BTO] films grown on MgO. The current focus is to understand the strain effects on the ferromagnetic behaviour. We plan to measure c/a and c/b ratios with increasing thickness of the individual bilayers. Out of plane extended reflectivity will allow us to model the vertical structure and investigate the interfacial region.    
	The ordered oxide superconductor-ferromagnetic bilayer interfacial structure has recently presented strong magnetic order [1]. XMCD taken at sector 4 of LCMO-YBCO bilayer films showed strong interfacial Mn related ferromagnetic order. The interfacial structure has still yet to be investigated thoroughly. Samples of different bilayer thickness as low as a single unit cell structure have been grown on STO substrates. We hope to obtain a preliminary study of these samples.

[1] J. Chakhalian, J.W. Freeland, et al. Nature Physics, Vol 2. April 06 p 244.
[2] K. Ueda, H. Tabata, Science, Vol 280 May ’98, p 1064

equipment_required:
	displex

experiment:
	Interfacial Structure of Ordered Oxide Bi-Layers.

foreign_nationals:
	

hazards:
	

instrument:
	33BM-C fourc

instrument_other:
	

minimumdays:
	4

name:
	Karapetrova Evguenia

nonmembers:
	Philip Ryan

submit:
	Submit

unacceptable_dates:
	March 5-9, March 27- april 3

z34ID_details:
	


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