Stephen Etzkorn
PREVIOUS
INSTITUTION: BS, University of Dallas, Dallas, Texas; PhD, The Ohio State
University
DATE JOINED GROUP: June 1997
AREAS OF STUDY: Organic based magnets, fractal magnetism
EMAIL: etzkorn@mps.ohio-state.edu
CURRENT
RESEARCH
Current research involves the study of spin dependent transport in layered
magnetic devices which incorporate organic layers.
Graduate work involved the study of the magnetic behavior in the quasi-one-dimensional
organic-based magnet [MnTPP]+[TCNE]-. This material
was shown to have spin glass properties including a frequency dependent
cusp in the ac susceptibility as well as long-time relaxation above the
spin glass transition temperature. The magnetic behavior was modeled with
a critical fractal cluster scaling approach. The results suggest that
the spin clusters formed in this system are fractal in nature, with the
fractals largely concentrated along a single chain of the material.
PUBLICATIONS
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Physical
Review Letters 89, 207201 (2002).
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Polyhedron,
in press (2003).
PRESENTATIONS
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Magnetic
Reversal and Relaxation in a Quasi-1D Fractal Cluster Glass, APS
March National Meeting (2003), Austin, TX USA.
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Viscous
Glassy Behavior in a Quasi-1D Organic-based Magnet APS March National
Meeting (2002), Indianapolis, IN USA.
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Viscous
Behavior in an Organic-Based Quasi-1D Fractal Cluster Glass, VIIIth
International Conference on Molecule-Based Magnets (2002), Valencia,
Spain.
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Anomalous
coercivity of a quasi-1D organic-based magnet, APS March National
Meeting (2001), Seattle, WA USA.
- S.J. Etzkorn, Wendy Hibbs, Joel S. Miller, and A.J. Epstein, Anomalous
Coercivity of [MnIIITPP]+ [TCNE]- 2(1,3-C6H4Cl2),
VIIth International Conference on Molecule-Based Magnets (2000),
San Antonio, TX USA.
- D.A. Pejaković, S.J. Etzkorn, A.J. Epstein, J.L. Manson, and J.S.
Miller, Study of Light-Induced Magnetization in Molecule-Based
Magnets, APS March National Meeting (1999), Atlanta, GA
USA.
Return to the main
page
Webpage created 12 March 2003 by John Rohrbacher
Contact the webmaster