University of Minnesota
School of Physics & Astronomy

Condensed Matter Seminar

Thursday, April 16th 2009
1:25 pm:
Condensed Matter Seminar in 210 Physics
Speaker: Professor Melissa Eblen-Zayas, Carleton College
Subject: Transport and magnetotransport properties of Eu-rich EuO thin films

Eu-rich EuO, of recent interest for its possible use in spintronics applications, exhibits properties similar to those of well-studied manganite systems like La2/3Ca1/3MnO3, including an insulator to metal transition associated with the onset of ferromagnetism and a large negative magnetoresistance response. Our work focuses on exploring comparisons between the EuO system and the manganites, using the binary EuO compound as a simplified laboratory with less structural complexity than the manganites. In this talk, I will describe our experimental work in the growth of Eu-rich EuO thin films and how the transport and magnetotransport properties of the films depend on the growth conditions, as well as discussing how future work can inform our understanding of the theoretical Kondo-lattice model that has been developed to describe the EuO system.

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