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<div style="text-align:center; font-size:180%; line-height:1.35em;">Topological Quantum Matter Engineering Lab</div>


Our group's specialty is growth and transport study of thin films grown by Molecular Beam Epitaxy (MBE). Our custom-designed MBE system has a number of unique capabilities that facilitate atomic-scale engineering of a variety of novel material systems. Utilizing these unique capabilities, we are actively investigating topological insulators, complex oxides and their heterostructures. Such heterostructures could yield new physics and devices that are intriguing both intellectually and technologically. We are currently one of the leading groups in thin film topological insulators.
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Welcome to Topological Quantum Matter Engineering Lab!!


== Job Opening ==
We are scientific explorers looking for previously-unknown territories in the vast ocean of quantum and topological materials. Our flagship is a uniquely-built hybrid molecular beam epitaxy system capable of creating various artificial materials with atomic precision, supported by a variety of other advanced tools and collaboration teams. With these unique capabilities, we explore a range of hybrid thin film quantum materials including topological insulators, topological superconductors, Weyl/Dirac semimetals, materials for superconducting and topological quantum computation, 2D materials, and correlated oxides, searching for new physics and materials for quantum and topological applications.  
We are looking for two postdoc candidates: one will initiate our efforts on development of oxide topological insulators and the other on spintronic topological insulator devices.  


Successful candidates should be skilled in some of the following areas.
If you would like to share the excitement of discoveries while exploring the unknown phase space of quantum and topological materials, you are welcome to join the Topological Quantum Matter Engineering Lab!!
1. Thin film growth techniques: (complex-)oxide MBE, compound-semiconductor (III-V, II-VI, etc) MBE, or other thin film growth techniques adapted to heterostructure engineering of complex oxides, compound semiconductors, or graphene-like materials.


2. Thin film characterization schemes: XRD, AFM, etc.
== News ==
Prof. Seongshik Oh is elected as a 2025 Fellow of American Physical Society (APS) through the Topical Group on Quantum Materials Synthesis (GQMS), "For advances in the MBE growth of chalcogenide thin films and defect engineering in 2D materials."


3. (Magneto-) Transport studies of thin film structures and devices (oxides, semiconductors, graphene-like materials, or topological insulators).
Prof. Seongshik Oh's postdoc supervisor, Prof. John M. Martinis, won Nobel Prize in Physics 2025!!


4. Cryogenics (sub-liquid-helium temperatures) and transport-instrumentation (+ Labview programming).
Prof. Seongshik Oh is elected as the Chair-Elect (till Dec. 2026) for Topical Group on Quantum Materials Synthesis (GQMS) in APS.
5. Photo(ebeam) lithography.


In addition, good paper writing skill is expected.
Prof. Seongshik Oh, named (2022-2024) Top Scholars in the area of Topological Insulator by ScholarGPS: https://scholargps.com/top-scholars?year=2024&ranking_duration=LIFETIME&specialty=Topological+insulator&p=3&e_ref=dff89961d7e1fa7c41a7#48


Considering that many renowned groups around the world are currently working on our thin film structures, this position will provide additional opportunities to form strong networks with those great scientists, which will be invaluable for his/her future career.
Interview of Prof. Seongshik Oh with "ScienceNews" magazine cited in https://www.sciencenews.org/article/dark-matter-axions-quasiparticles, regarding the recent discovery of an axion-like quasiparticle related to dark matter, in a thin topological quantum material.


If you are highly motivated and interested in exploring these newly emerging fields,
KSEA NJ&NY Youtube interview with Prof. Seongshik Oh, regarding quantum materials and other areas of physics (in Korean): https://youtu.be/phlaKj40Y3o
please send your detailed CV including names of three reference writers, and a research statement to
 
ohsean"At"physics.rutgers.edu; in your research statement, please state which of the two directions you are more interested in.
Interview with Prof. Seongshik Oh in the KSEA NJ & NY YouTube channel (In Korean): https://www.youtube.com/watch?v=SoMHR8AVXC4&t=16s&ab_channel=KSEANJ%26NY
 
Three of our recent materials breakthroughs are featured in Army Research Office's 2022 Review, under the title of "[[Media:ARO2022.pdf|High-Temperature and Tunable Quantum Magnetic Materials]]" [https://arl.devcom.army.mil/wp-content/uploads/sites/3/2023/06/ARO-YEAR-IN-REVIEW-2022-WEB-FINAL.pdf] .
 
Our recent work on topological phase transitions probed by higher harmonics is featured in the News and Views article in Nature Photonics: https://www.nature.com/articles/s41566-022-01063-2
And also here: https://www6.slac.stanford.edu/news/2022-08-18-exploring-quantum-electron-highways-laser-light.aspx

Latest revision as of 19:35, 10 October 2025

Topological Quantum Matter Engineering Lab
GroupPhoto5.jpg

Welcome to Topological Quantum Matter Engineering Lab!!

We are scientific explorers looking for previously-unknown territories in the vast ocean of quantum and topological materials. Our flagship is a uniquely-built hybrid molecular beam epitaxy system capable of creating various artificial materials with atomic precision, supported by a variety of other advanced tools and collaboration teams. With these unique capabilities, we explore a range of hybrid thin film quantum materials including topological insulators, topological superconductors, Weyl/Dirac semimetals, materials for superconducting and topological quantum computation, 2D materials, and correlated oxides, searching for new physics and materials for quantum and topological applications.

If you would like to share the excitement of discoveries while exploring the unknown phase space of quantum and topological materials, you are welcome to join the Topological Quantum Matter Engineering Lab!!

News

Prof. Seongshik Oh is elected as a 2025 Fellow of American Physical Society (APS) through the Topical Group on Quantum Materials Synthesis (GQMS), "For advances in the MBE growth of chalcogenide thin films and defect engineering in 2D materials."

Prof. Seongshik Oh's postdoc supervisor, Prof. John M. Martinis, won Nobel Prize in Physics 2025!!

Prof. Seongshik Oh is elected as the Chair-Elect (till Dec. 2026) for Topical Group on Quantum Materials Synthesis (GQMS) in APS.

Prof. Seongshik Oh, named (2022-2024) Top Scholars in the area of Topological Insulator by ScholarGPS: https://scholargps.com/top-scholars?year=2024&ranking_duration=LIFETIME&specialty=Topological+insulator&p=3&e_ref=dff89961d7e1fa7c41a7#48

Interview of Prof. Seongshik Oh with "ScienceNews" magazine cited in https://www.sciencenews.org/article/dark-matter-axions-quasiparticles, regarding the recent discovery of an axion-like quasiparticle related to dark matter, in a thin topological quantum material.

KSEA NJ&NY Youtube interview with Prof. Seongshik Oh, regarding quantum materials and other areas of physics (in Korean): https://youtu.be/phlaKj40Y3o

Interview with Prof. Seongshik Oh in the KSEA NJ & NY YouTube channel (In Korean): https://www.youtube.com/watch?v=SoMHR8AVXC4&t=16s&ab_channel=KSEANJ%26NY

Three of our recent materials breakthroughs are featured in Army Research Office's 2022 Review, under the title of "High-Temperature and Tunable Quantum Magnetic Materials" [1] .

Our recent work on topological phase transitions probed by higher harmonics is featured in the News and Views article in Nature Photonics: https://www.nature.com/articles/s41566-022-01063-2 And also here: https://www6.slac.stanford.edu/news/2022-08-18-exploring-quantum-electron-highways-laser-light.aspx

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