Displaying all lectures given by: Jeffrey Rau

PIRSA:17060031  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Microscopic aspects of insulating rare-earth pyrochlore magnets
Speaker(s): Jeffrey Rau
Abstract: In this tutorial, we will review the microscopic aspects of rare-earth magnets relevant for quantum spin ice. We first discuss the single-ion properties of the variety of rare-earth atoms that appear in quantum spin ice candidate materials. Second, we consider the origin of the two-ion exchange inte... read more
Date: 07/06/2017 - 9:00 am

PIRSA:17050092  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Ba3Yb2Zn5O11: A model system for anisotropic exchange on the breathing pyrochlore lattice
Speaker(s): Jeffrey Rau
Abstract: In this talk we present a study of the “breathing” pyrochlore compound Ba3Yb2Zn5O11. Due to the nearly decoupled nature of its tetrahedral units, this compound serves as an ideal testbed for exploring the nature of anisotropic exchange in a theoretically and experimentally tractable rare-earth s... read more
Date: 25/05/2017 - 5:00 pm

PIRSA:14050025  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Generic Spin Model for Honeycomb Iridates Beyond the Kitaev Limit
Speaker(s): Jeffrey Rau
Abstract: Recently, realizations of Kitaev physics have been sought in the A2IrO3 family of honeycomb iridates, originating from oxygen-mediated exchange through edge-shared octahedra. However, for the J=1/2 Mott insulator in these materials exchange from direct d-orbital overlap is relevant, and it was propo... read more
Date: 01/05/2014 - 3:10 pm
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