aabol@umich.edu
The Bol group has unique experience in the field of large area synthesis of 2D transition metal dichalcogenides using plasma enhanced atomic layer deposition of various 2DTMDs at low temperatures with precise control over the layer thickness, phase and doping. Her group plays a major role in investigating the advanced manufacturing of large area endotaxial 2D materials based on input from the Hovden, Gull and Sun groups. ALD samples are shared with the characterization team (Goldman, Heron, Hovden, Jo and Zhao).
Ageeth Anke Bol
rsgold@umich.edu
The Goldman group performs molecular-beam epitaxy (MBE) and scanning-probe microscopy of endotaxial (growth within) heterostructures of Van der Waals-bonded ('two-dimensional') materials. During the first year, chalcogen sources are being added to the MBE systems, while protocols for quasi-particle interference (QPI) microscopy are being developed. QPI is used to characterize endotaxial heterostructures from Bol, Li, Maldonado, and Poudeu. MBE-grown samples are also shared with characterization groups (Heron, Hovden, Jo, Zhao).
Rachel S. Goldman
egull@umich.edu
The Gull group performs ab-initio computations of the electronic structure of realistic compounds collaborating with the groups of Profs. Jo and Bol, using post-DFT methodologies. The group is starting with CrSBr and TaS 2 as initial compounds and adjusting to the interests of the experimentalists. Simulations are an integral part of discovery of new materials. Band structure diagrams, energetics, and structural information is essential for the interpretation of experimental findings and materials selection.
Emanuel Gull
jtheron@umich.edu
The Heron group investigates the novel phase transitions and physical behavior of endotaxial TMD materials via temperature and field dependent transport measurements. His group, in feedback with calculations (K. Sun) and atomic scale characterization (Hovden), is key for understanding the phase behavior of endotaxial-stabilized phases and harnessing them for a proof of concept technology.
John Thomas Heron
hovden@umich.edu
The Hovden group works at the forefront of atomic imaging using high-energy electron beams to discover exotic electronic and structural behavior in materials. Utilizing in-situ electron microscopy the group unveils how atomic restructuring occurs in 2D materials. In the MRSEC the synthesis of 2D endotaxial materials is studied using in-situ TEM methods that include thermal treatment hot and cold.
Robert Hovden
yiyangli@umich.edu
The Li group has unique expertise with precision solid-state electrochemistry, including the electrochemical intercalation of guest ions into 2D materials. His group plays a major role in investigating how intercalants like Li + , Na + , Ag + , and Cu + within the van der Waals layers can be used to drive novel endotaxial states. In particular, intercalant layer ordering, or staging, may provide an intrinsic method to create endotaxial heterostructures.
Yiyang Li
smald@umich.edu
The Maldonado group has expertise in chemical surface passivation, electrosynthesis of inorganic nanomaterials, and electro-analytical characterization of redox active materials. His group develops methods for redox exfoliation of transition metal dichalcogenide layers under conditions that minimize oxidation at the edge of the sheets to obtain chemically stabilized 2D materials that can be stored and handled in ambient conditions.
Stephen Maldonado
nhjo@umich.edu
The Jo group specializes in probing electronic structure through angle-resolved photoemission spectroscopy (ARPES). Her group collaborates closely with synthesis groups to advance the fundamental understanding of various endotaxial materials. Simultaneously, in collaboration with theory groups, her group unravels the emergent phenomena of the endotaxial materials.
Na Hyun Jo
ppoudeup@umich.edu
Poudeu group research expertise is in the area of solid-state synthesis, solution synthesis, and characterization of inorganic materials for energy and electronic applications. His group synthesizes bulk TMDs with high crystal quality for endotaxial processing.
Pierre Ferdinand Poudeu-Poudeu
sunkai@umich.edu
The Sun group possesses strong expertise in the theoretical investigation of many-body quantum systems, placing a specific emphasis on correlated quantum materials and topological states of matter. Sun’s group provides theoretical predictions on novel quantum states/phenomena that will emerge in endotaxial materials, analyzes their topological indices and topological properties, and identifies their experimental signature, utilizing symmetry-based theory modeling and analysis.
Kai Sun
whsun@umich.edu
The Sun Research Group uses high-throughput computation, applied thermodynamics, and materials informatics to predict the synthesis and synthesizability of novel functional materials. His group develops new quantitative, predictive and computable thermodynamic and kinetic models to rationalize phase evolution towards the formation of polytypic rocksalt/wurtzite, delafossite 3R/2H, and other 2D binary oxides and chalcogenides for endotaxial materials.
Wenhao Sun
lyzhao@umich.edu
The Zhao group specializes in investigating emergent quantum phases of matter using a broad set of optical techniques including linear and nonlinear, static and dynamic optical spectroscopy/microscopy. Her group plays a major role in resolving symmetries and detecting collective excitations for the quantum phases realized in endotaxial 2D materials prepared by the Bol, Goldman, Hovden, and Poudeu groups, and also in understanding these phases in collaboration with the Gull and Sun groups.
Liuyan Zhao
hi