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Principle Investigators

Photo of Dr. Fisher Yu

Shui-Qing “Fisher” Yu

University of Arkansas

EFRC Director

Thrust 2, 4

SiGeSn Materials and Devices, Semiconductor Optoelectronics.

https://yulab.uark.edu/

Photo of Dr. Jin Hu

Jin Hu

University of Arkansas

UA local Deputy

Crosscut lead, Junior Advisory Committee

Thrust 3, 4

Materials synthesis, Quantum Materials, Transport, Magnetism.

https://quantumlab.uark.edu/

Photo of Dr. Salamo

Greg Salamo

University of Arkansas

Thrust 2

MBE III-V Nanostructures and SiGeSn, MBE, STM, Nonlinear Optics.

Photo of Dr. Hugh Churchill

Hugh Churchill

University of Arkansas

Thrust 4

2D materials, Quantum Materials, Nano-Fab.

http://churchill-lab.com/

Photo of Dr. Nakamura

Hiro Nakamura

University of Arkansas

Thrust 3, 4

ARPES, MBE

https://nakamura.uark.edu/

Photo of Dr. Li

Tianshu Li

George Washington University

Thrust lead

Thrust 1

Computation Material Modeling for SiGeSn Material System for SRO, Modeling of Nucleation Process.

https://blogs.gwu.edu/tsli/

Photo of Dr. Jifeng Liu

Jifeng Liu

Dartmouth College

Thrust leader

Thrust 3

Group-IV Photonics, Ge and GeSn, Crystallization

https://sites.dartmouth.edu/liu-research

Photo of Dr. Yong-Hang Zhang

Yong-Hang Zhang

Arizona State University

Thrust 2

MBE III-V, II-VI, and group-IV MBE.

http://asumbe.eas.asu.edu/

Photo of Paul McIntyre (Stanford)

Paul McIntyre

Stanford University

Thrust 2, 3

GeSn nanowire, X-Ray

http://mcintyre.stanford.edu/

Photo of Dr. Andrew Minor

Andrew Minor

U.C. Berkeley

Photo of Dr. Shengbai Zhang

Shengbai Zhang

Rensselaer Polytechnic Institute

Thrust 1

SRO’s Impact on Electronic Structure and Property; Modeling of Epitaxy Growth

https://homepages.rpi.edu/~zhangs9/

Photo of Dragica Vasileska

Dragica Vasileska

Arizona State University

Crosscut lead, DEI Committee

Thrust 1

Transport Modeling and Advanced Transistor Modeling

https://www.dragicavasileska.net/

Photo of Yuping Zeng

Yuping Zeng

University of Delaware

Thrust lead

Crosscut lead, Junior Advisory Committee

Thrust 2

GeSn transistor, high speed transistor, GeSn MBE.

https://www.eecis.udel.edu/~yzeng/

Photo of Ezra Bussmann

Ezra Bussmann

Sandia National Lab

Photo of Tzu-Ming Lu

Tzu-Ming Lu

Sandia National Lab

Thrust lead

Thrust 4

Transport, Superconductor, Quantum Materials, Nanofabrication.

https://scholar.google.com/citations?user=jscL8jgAAAAJ&hl=en

Photo of Shashank Misra

Shashank Misra

Sandia National Lab

Thrust 2

Atomically Precise Advanced Manufacturing

https://scholar.google.com/citations?hl=en&user=3T7HSuAAAAAJ

Photo of Dr. Michael Lilly

Michael Lilly

Sandia National Lab

Thrust 4

Low T Material Characterization

https://cint.lanl.gov/research/thrusts.php

Photo of Mansour Mortazavi

Mansour Mortazavi

University of Arkansas at Pine Bluff


Staff

Emma McIntosh

University of Arkansas

EFRC Program Coordinator

Shunda Chen

Shunda Chen

Staff Research Scientist

Research focus on utilizing theoretical modeling, first-principles calculations, advanced atomistic simulations, machine learning, and high-performance computing for investigating Short-Range Order (SRO) in Group IV alloys, and impacts of SRO on materials’ properties, including electronic, thermal and topological quantum properties, and beyond.


Postdoctoral Researchers

Dinesh Baral

Dinesh Baral

University of Arkansas

Postdoctoral researcher with research focus on utilizing Scanning Tunneling Microscopy and Spectroscopy (STM/S) to explore the atomic ordering during the growth of GeSn. The objective is to understand the short-range order evolution during the growth.

Lilian Vogl

Lilian Vogl

University of California Berkeley

Postdoctoral Researcher with research focus on 4DSTEM Analysis to visualize the ordering in the material system Si-Ge-Sn.

Priyanka Petluru

Priyanka Petluru

Sandia National Laboratories

Postdoctoral Researcher

Manish Sharma

Manish Sharma

University of Arkansas

Postdoctoral researcher focusing on low-temperature electrical transport measurements to explore the topological character in the Germanium-Tin system

Manoj Shah

Manoj Shah

University of Arkansas at Pine Bluff

Postdoctoral researcher with focus on developing GeSn, III-V on Sapphire, and 2D materials based optoelectronic devices.

Caitlyn McCowan

Caitlin McCowan

Sandia National Laboratories

Postdoctoral Researcher

Yunsheng Qui

Yunsheng Qiu

University of Arkansas

Postdoctoral Researcher focused on Group IV materials synthesis and characterization

Zheng Ju

Zheng Ju

Arizona State University

Postdoctoral scholar with research focus on molecular beam epitaxy growth and semiconductor optoelectronic devices and materials.

Sharawan Roy

Shrawan Roy

University of Arkansas at Pine Bluff

Postdoctoral researcher with focus on the optical properties of 2D materials.

Adelaide Bradicich

Adelaide Bradicich

Sandia National Laboratories

Postdoctoral researcher investigating Group IV alloy growth and electronic transport characterization.

Moheb Sheikhi

Moheb Sheikhi

University of Delaware

Postdoctoral researcher with focus on SiGeSn transferring and fabrication of transistor devices.

Rabindra Basnet

Rabindra Basnet

University of Arkansas at Pine Bluff

Postdoctoral researcher with focus on electrical transport measurement on Sn-Ge systems under extreme conditions such as low temperature and high magnetic field.

Suho Park

Suho Park

University of Delaware

Postdoctoral researcher with focus on epitaxial growth of group IV semiconductor, material characterization, device fabrication and characterization regarding GeSn ribbon transfer.

Anis Attiaoui

Anis Attiaoui

Stanford University

Postdoctoral researcher with focus on growth of group IV nanowires and optical characterization.


Students

Shang Liu

Dartmouth College

Ph.D. Candidate with research focus on developing algorithm to calculate short-range order (SRO) in GeSn using atom probe tomography (APT) data.

Shangda Li

Dartmouth College

Ph.D. Candidate with research focus on fabrication of GeSn and material property study.

Siddhant Gangwal

Arizona State University

Graduate Research Assistant with research focus on modeling electronic properties for group IV alloy (Si-Ge-Sn-Pb) material systems and developing transport models (path integral implementation of BTE) for nanodevices. 

Tyler McCarthy

Arizona State University

Ph.D. Candidate with research focus on the growth of SiGeSnPb alloys by molecular beam epitaxy (MBE) to study transport and quantum material properties.

Sudeep Puri

Sudeep Puri

University of Arkansas

Graduate Student

Ram Joshi

Ram Joshi

University of Arkansas

Graduate Student

Xin Qi

Xin Qi

Arizona State University

Graduate Research Assistant

Allison McMinn

Allison McMinn

Arizona State University

Graduate Research Assistant

Xiaochen Jin

George Washington University

Graduate Student

Christopher Lemkan

Christopher Lemkan

George Washington University

Student

J. Zach Lentz

J. Zach Lentz

Stanford University

Graduate Student with research focus on detection of short-range order in Ge-Sn materials using synchrotron extended x-ray absorption fine structure spectroscopy (EXAFS).

Haochen Zhao UD

Haochen Zhao

University of Delaware

Ph.D. Candidate with research focus on Epitaxial growth of GeSn using MBE technique, material characterization of (Si)GeSn (TOF-SIMS, XRD, XPS and Raman), and device fabrication related to GeSn materials (Transistor and photodetector).

steven akwabli

Steven Akwabli

University of Arkansas

Ph.D. Candidate

Yunfan-Liang

Yunfan Liang

Rensselaer Polytechnic Institute

Graduate Student

Garrett Kitterman

Garrett Kitterman

University of Arkansas

Ph.D. Candidate with research focus on 2D materials, quantum materials, and nanofabrication.

Dinesh Upreti

Dinesh Upreti

University of Arkansas

Ph.D. Candidate with research focus on Two-Dimensional Magnetism.

Xiaoyang Liu

Xiaoyang Liu

Arizona State University

Graduate student with research focus on group IV semiconductor MBE growth, characterization, and device fabrication.

Aathira Nair

Aathira Nair

George Washington University

Graduate student

Abdulla Said Ali

Abdulla Said Ali

University of Arkansas

Graduate student with research focus on fabrication and characterization of GeSn Aspect Ratio Trapping (ART).