Magnetic proximity effect in van der Waals heterostructures
ORAL
Abstract
Monolayer transition metal dichalcogenide (TMD) are two-dimensional (2D) semiconductors that possess valley degrees of freedom. The two inequivalent valleys at K and K' form a Kramer's pair, where they are degenerate states in the presence of time-reversal symmetry. To lift this degeneracy, time-reversal symmetry must be broken, and one way of doing so is to stack TMD onto a 2D magnet. In this talk, using physically motivated models and first-principles calculations, we will address how stacking of a monolayer TMD with a 2D magnet could tune the lattice and electronic structures of TMD, with a particular focus on the control of the valley degrees of freedom. We will also address the physical consequences of interlayer coupling and proximity effects from various magnetic phases.
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Presenters
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Yusen Ye
University of Washington, Seattle
Authors
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Yusen Ye
University of Washington, Seattle
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Di Xiao
University of Washington, Department of Physics, University of Washington, Seattle, WA, USA. Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA, University of Washington, Seattle
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Yafei Ren
University of Washington
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Chong Wang
Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA, Carnegie Mellon Univ, University of Washington, University of Washington, Seattle, Carnegie Mellon University
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Ting Cao
University of Washington
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Jimin Qian
University of Washington