Colloquium: Xianghan Xu, UMN

Symmetries in Quantum Materials - Antiferromagnetism and Beyond

Abstract: In the realm of quantum materials, symmetries play a fundamental role in governing the intricate interactions among charge, spin, orbital, and lattice degrees of freedom, thereby giving rise to complex ordering phenomena. In this presentation, I will discuss my research focused on the exploration of innovative antiferromagnetic materials that exhibit intercoupling with other physical properties driven by symmetries. Specifically, I will highlight the manifestation of type-II multiferroicity in CoTe6O13, a material preserving PT symmetry, and the emergence of altermagnetism in Ca2Fe2O5, a material where PT symmetry is broken. These discoveries provide insights into the development of antiferromagnetic systems hosting novel quantum phases and advanced technological functionalities.

Category
Start date
Thursday, Jan. 23, 2025, 3:35 p.m.
End date
Thursday, Jan. 23, 2025, 4:35 p.m.
Location

B50 Tate Hall

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