Argonne National Laboratory

Users Week 2008
May 4-8, 2008

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- April 4: poster abstracts
- April 11: non-U.S. registration
- April 18: housing
- April 25: registration


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Past Meetings




Workshop 5

Emergent States at Interfaces of Complex Oxides: What Can Be Learned from Local Probes

Wed. May 7, afternoon
Thu. May 8, morning

Organizers: Matthias Bode (CNM) and Anand Bhattacharya (CNM)

To agenda > Updated 3/20/2008

Two-dimensional electron gas (2-DEG) systems set the stage for some of the best-known manifestations of strong correlations, ranging from quantum-hall states in high mobility 2-DEGs to high-temperature superconductivity in the two-dimensional cuprates.  Recent improvements in growing complex oxides by a suitable arrangement of digital layers within a heterostructure allow the realization of 2-DEGs without introducing chemical disorder.   

The symposium shall identify promising materials, open problems, and adequate analysis tools that may lead to a better understanding of structural, electronic, and magnetic properties of these materials and their interfaces, including electron-beam--based (SEM, STEM-EELS) as well as near-field scanning probe techniques (MFM, STM/STS).


Wednesday, May 7, 2008

1:15 - 1:25 Welcome and Introduction
Anand Bhattacharya (CNM), Matthias Bode (CNM)
1:25 - 2:10

Jim Eckstein (University of Illinois at Urbana-Champaign)

2:10 - 2:55 TBD/photoemission spectroscopy
Juan Carlos Campuzano (University of Illinois at Chicago)
2:55 - 3:15 Break
3:15 - 4:00

Probing Oxide Superlattice Structure with Aberration-Corrected Scanning Transmission Electron Microscopy
Amish Shah (University of Illinois at Urbana-Champaign)

4:00 - 4:45 Quasiparticle Extinction due to approaching Mottness or The Achilles' heel of High-Tc Superconductivity
Seamus Davis (Cornell University and Brookhaven National Laboratory)

Thursday, May 8, 2008

9:00 - 9:45

Variable-temperature Scanning Tunneling Microscopy of the Cuprate Superconductors
Abhay Pasupathy (Princeton University)
9:45 - 10:30

Using X-rays to Understand Emergent States at Complex Oxide Interfaces
John Freeland (Argonne National Laboratory, APS)

10:30 - 11:00 Break
11:00 - 11:45

Nonlocal screening in La 2 CuO 4 - La 2-x Sr x CuO 4 superlattices
Peter Abbamonte (University of Illinois at Urbana-Champaign)

11:45 - 12:30 Magnetic Depth Profiling in Complex Oxide Heterostructures
Suzanne te Velthuis (Argonne National Laboratory, MSD)
12:30 Closing



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