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Users Week 2010
May 3-5, 2010

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Workshop 3
Linking Structure and Magnetism in Novel Materials: Future Opportunities
at an Upgraded APS

May 5
Bldg. 440, Rm. 105/106 (Center for Nanoscale Materials)
8:45 am – 12:15 pm
1:30 pm – 5:30 pm

Organizers: J.W. Freeland (APS) and A. Enders (Univ. of Nebraska)

Magnetism is a fundamental property that underpins much of our basic understanding of the functionality of many systems.  Since magnetism arises from cooperative interactions between atoms, it is not only dependent on the electronic state of a local atom but also how it is connected to the rest of the system (i.e., its structure).  Understanding this interrelationship is key to unraveling forefront questions in magnetism, such as how magnetic order evolves with reduced dimensionality and how it responds to external stimuli.  Of equal importance is the interrelationship with other properties (e.g., metallicity, superconductivity, ferroelectricity, and so on) and how we can rationally control the state of a material through its structural, electronic, and magnetic interactions. Synchrotron radiation provides a unique suite of tools (spectroscopy and diffraction) that are crucial to our understanding of this link between structure and magnetism.  This workshop will focus on how the planned upgrade of Advanced Photon Source will allow us to go well beyond our current capabilities by enabling new types of measurement.  Topics of interest are controlling magnetism with external stimuli (pressure, light, magnetic fields), the evolution of the magnetic state with dimensionality (i.e., nanomagnetism), and probing structural response to changes in magnetic state.


Abstracts linked if text and permission received.

8:45 – 9:00 John Freeland (Argonne National Laboratory) and Axel Enders (U. of Nebraska)
9:00 – 9:35 Jacques Chakhalian (Department of Physics, University of Arkansas)
"Strongly Interacting Electrons at Complex Oxide Interfaces: From Growth to Physics" [abstract]
9:35 – 10:10 Chris Palmstrøm (University of California at Santa Barbara)
"Epitaxial Magnetic Metal/Semiconductor Heterostructure Interfaces" [abstract]
10:10 – 10:30
Coffee Break
10:30 – 11:05

Tiffany Santos (Center for Nanoscale Materials, Argonne National Laboratory)
"Modulation Doping of Ferromagnetism in LaMnO3/SrMnO3 Superlattices by Digital Synthesis"

11:05 – 11:40

James M. Rondinelli (University of California at Santa Barbara)
"Magnetostructural Coupling in Oxides: Insights from First Principles" [abstract]

11:40 – 12:15 Jan Honolka (Max Planck Inst. for Solid State Physics)
"Tuning Magnetic Properties through Coordination: From 2D Metal-organic Networks to Metal Nanostructures" [abstract]
12:15 – 1:30
1:30 – 2:05 John Schlueter (Argonne National Laboratory)
"Correlating Structure and Magnetism in Coordination Polymers under Extreme Conditions of Pressure and Magnetic Field"
2:05 – 2:40 Kevin Moore (Lawrence Livermore National Laboratory)
"Understanding Magnetic Stabilization of Metallic Crystals through the Actinide Element Curium"
2:40 – 3:15 Manuel Angst (Institut für Festkörperforschung, JCNS, and JARA-FIT Forschungszentrum Jülich, Germany)
"Interplay of Spin, Charge, and Structural Degrees of Freedom in Magnetoelectric LuFe2O4" [abstract]
3:15 – 3:45
Coffee Break
3:45 – 4:20 Jacob P. C. Ruff (Department of Physics, McMaster University)
"Magnetoelastics of a Spin Liquid: X-ray Single-crystal Diffraction Studies of Tb2Ti2O7 in Pulsed Magnetic Fields" [abstract]
4:20 – 4:55 Jiun-Haw Chu (Stanford University)
"Evidence for an Electron Nematic Phase Transition in Underdoped Iron Pnictide Superconductors" [abstract]
4:55 – 5:30 Wrap-up/Discussion







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