CME Seminar - TODAY - 11:30am, Smith Seminar Room - Art Hebard, University of Florida

[Longbrake, Patricia]

Please join us this morning at 11:30am in the Smith Seminar room for the CME Seminar presented by Art Hebard from the University of Florida.

"Disorder-tuned approach to critical behavior in thin-film ferromagnets "

Using an apparatus in which thin films can be deposited and then immediately transferred without exposure to air into an adjoining cryostat, results will be presented on the disorder-induced changes in conductivity and magnetic behavior of thin-film ferromagnets  (Fe, Co, Gd and Mn). At low disorder strengths two distinct quantum corrections to the conductivity are found whereas at higher disorder strengths, films with a granular morphology (e.g., Fe, Co) can be described as "anomalous Hall insulators" in contrast to films with a more uniform morphology (e.g., Gd) which undergo a metal-insulator transition with well-defined critical exponents extracted from finite-temperature scaling theory.

Thank you,
Trisch
2-2778
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