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Condensed Matter Seminars

ics Condensed Matter
Thursday, November 12, 2015
11:00 AM
Physics Building, Room 313
Prof. Haidong Zhou [Host: Seunghun Lee]
University of Tennessee
"Magnetic orderings of XY-pyrochores"
ABSTRACT:

Due to the geometrically frustrated lattice and effective spin-1/2, the XY pyrochlores Er2Ti2O7 and Yb2Ti2O7 exhibit exotic magnetic ground states related to quantum spin fluctuations. In this talk, we presented our recent studies on the magnetic orderings of new XY pyrochlores Er2Ge2O7 and Yb2Ge2O7. Then we tried to unify the magnetic orderings of all studied XY pyrochlores Er2B2O7 and Yb2B2O7 (B = Sn, Ti, and Ge) through the chemical pressure effects based on the theoretically proposed phase diagram.

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