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Location
**MEM111***
Speaker
Patrick Vora, George Mason University
Host
Xiao

Atomically thin materials derived from layered crystals have occupied much of the condensed matter community since the discovery of graphene in 2004. Transition metal dichalcogenides (TMDs) are among the most versatile members in the family of layered materials due to the opportunities for tuning electronic behaviors with chemical composition, layer number, and structural phase.

Location
Sharp Lab 116
Speaker
Shiming Lei, Princeton
Host
Xioa

Quantum materials are believed to be key for many next-generation technologies, such as sensing, computing, modeling or communication, with higher accuracy or efficiency. Particularly, the magnetic quantum materials are promising for spintronic applications due to the interplay of magnetic order with electronic properties. To study the intrinsic material properties and evaluate the performance of novel devices fabricated from these materials, a high material quality is necessary. Otherwise the desired properties might be obscured.

Location
Gore 104
Speaker
Ying Wang
Host
Xiao
The emergent quantum materials such as 2D Van der Waals materials and topological materials, exhibit many unconventional properties like reduced dielectric screening, divergent quantum geometry and nontrivial topology. The structural phase engineering or transformation of the atomic building blocks in these quantum platforms promises to deepen our understanding of their unique structure-property relationship, breed novel computational device concepts and revolutionize technologies in data storage and thermal management.
Location
Gore 104
Speaker
Xufeng Zhang, Argonne National Laboratory
Host
Xiao

With recent demonstration of quantum computing and quantum communication, quantum information science has been changing our world in an unprecedented way. To fully explore the power of quantum information processing, it is important to further combine discrete quantum elements and build distributed quantum networks. However, this poses significant technical challenges because quantum coherence can be easily destroyed as the signal propagates through different systems.

Location
Gore 104
Speaker
Yi Li, Argonne National Laboratory
Host
Xiao

In the race of post-CMOS computing technologies, coherent information processing with microwave circuits have demonstrated great potentials with the recent breakthrough in quantum computing, where both the quanta and the phase of the excitation states can be utilized for carrying and processing information. As one of the candidate excitations for coherent information processing, magnons are collective excitations of exchange-coupled spins in magnetic materials with the natural frequency lying in the microwave regime.

Location
SHL 215
Speaker
R. C. Budhani, Morgan State University
Host
Jungfleiscih
The two-dimensional diffusive metal stabilized at the interface of SrTiO3 and the Mott insulator LaTiO3 has challenged many notions related to the formation and electronic behavior of the two-dimensional electron gas at the well studies LaAlO3-SrTiO3 interface. Here we discuss specifically the stability of the superconducting phase at LaTiO3 - SrTiO3 interface and the nature of the superconductor - normal metal quantum phase transition driven by a magnetic field and by carrier density modulation through electrostatic gating.
Location
SHL215
Speaker
John Cumings, University of Maryland
Host
Jungfleisch
A scholarly adage of Materials Science tells us that, "Materials are like people; it's the defects that make them interesting!" However, when it comes to truly understanding basic physical properties, defects in crystals routinely present tough problems. Artificial Spin Ice (ASI) is a class of lithographically fabricated synthetic materials where the exact structure can be controlled precisely on nm length scales that determine their magnetic behavior. This provides a unique and fertile platform to study the behavior of magnetic order parameters and other degrees of freedom within solids.
Location
SHL215
Speaker
Joseph Sklenar
Host
Jungfleisch
One path towards realizing an artificial spin system involves nanostructuring thin magnetic films into single magnetic domain elements or islands. In the simplest form, these islands behave as giant Ising (binary) spin states which can be mapped onto spin-lattice models. The earliest example of such a nanomagnet system was the so-called artificial spin ice system, where an artificial spin system was designed to promote geometric frustration and simulate real spin ice materials. However, as interest in artificial spin ice grew, other areas of inquiry developed.