About me

Hi, my name is Yi Chen (陈一). I’m an experimental physicist exploiting new scanning probe methods to explore quantum systems ranging from single or few quantum spins to complex many-body entangled systems. I completed my Ph.D. in physics at University of California, Berkeley under the supervision of Prof. Michael F. Crommie. I’m now doing postdoctoral research at Center for Quantum Nanoscience working with Prof. Andreas Heinrich.

Update: Yi will be starting as an Assistant Professor at ICQM & Physics department at Peking University in 2022 Winter. Positions at various levels are available. Contact me if you are interested! Please refer to the research interests below.

Research interests: New science explored with new technology

  • Quantum control x Quantum materials, enabled by ESR-STM
    • Spin centers in quantum materials, accessible at the atomic level
    • Quantum nanodevices & simulators, built atom-by-atom
    • Atomic-scale quantum sensing
  • Unconventional materials studied by STM
    • Strongly-correlated and topological 2D systems
    • Insulators; Quantum spin liquids and quantum magnets
    • 2D devices & twistronics
  • Novel instrumentation for atomic-scale electromagnetic imaging

Google scholar page


  1. Soo-Hyon Phark*, Yi Chen*, Christoph Wolf, Hong T. Bui, Yu Wang, Masahiro Haze, Jinkyung Kim, Christopher P. Lutz, Andreas J. Heinrich, and Yujeong Bae. “Double electron spin resonance of engineered atomic structures on a surface” Under Review. Preprint
  2. Yi Chen*, Wen-Yu He*, Wei Ruan*, Jinwoong Hwang, Shujie Tang, Ryan L. Lee, Meng Wu, Tiancong Zhu, Canxun Zhang, Hyejin Ryu, Feng Wang, Steven Louie, Zhi-Xun Shen, Sung-Kwan Mo, Patrick Lee, and Michael F. Crommie. “Evidence for a spinon Kondo effect in cobalt atoms on single-layer 1T-TaSe2” Under Review. Preprint
  3. Yi Chen*, Wei Ruan*, Jeffrey D. Cain, Ryan L. Lee, Salman Kahn, Caihong Jia, Alex Zettl, and Michael F. Crommie. “Observation of a multitude of correlated states at the surface of bulk 1T-TaSe2 crystals” Under Review.
  4. Yi Chen, Yujeong Bae, Andreas J. Heinrich. “Harnessing the Quantum Behavior of Spins on Surfaces” Invited review. Advanced Materials (2022). Link. Preprint.
  5. Wei Ruan*, Yi Chen*, Shujie Tang, Jinwoong Hwang, Hsin-Zon Tsai, Ryan L. Lee, Hyejin Ryu, Salman Kahn, Franklin Liou, Caihong Jia, Choongyu Hwang, Feng Wang, Patrick Lee, Zhi-Xun Shen, Sung-Kwan Mo, and Michael F. Crommie. “Evidence for quantum spin liquid behavior in single-layer 1T-TaSe2 from scanning tunneling microscopy” Nature Physics 17, 1154–1161 (2021).
    Link. News & Views. Press coverage
  6. Yi Chen*, Wei Ruan*, Meng Wu*, Shujie Tang*, Hyejin Ryu, Hsin-Zon Tsai, Ryan L. Lee, Salman Kahn, Franklin Liou, Caihong Jia, Oliver R. Albertini, Hongyu Xiong, Tao Jia, Zhi Liu, Jonathan A. Sobota, Amy Y. Liu, Joel E. Moore, Zhi-Xun Shen, Steven G. Louie, Sung-Kwan Mo, and Michael F. Crommie. “Strong correlations and orbital texture in single-layer 1T-TaSe2Nature Physics 16, 218-224 (2020).
    Link. News & Views. Press coverage
  7. Zahra Pedramrazi, Charlotte Herbig, Artem Pulkin, Shujie Tang, Madeleine Phillips, Dillon Wong, Hyejin Ryu, Michele Pizzochero, Yi Chen, Feng Wang, Eugene J. Mele, Zhi-Xun Shen, Sung-Kwan Mo, Oleg V. Yazyev, and Michael F. Crommie. “Manipulating topological domain boundaries in the single-layer quantum spin Hall insulator 1T’-WSe2Nano Letters 19, 5634-5639 (2019). Link
  8. Miguel M. Ugeda, Artem Pulkin, Shujie Tang, Hyejin Ryu, Quansheng Wu, Yi Zhang, Dillon Wong, Zahra Pedramrazi, Ana Martin-Recio, Yi Chen, Feng Wang, Zhi-Xun Shen, Sung-Kwan Mo, Oleg V. Yazyev, and Michael F. Crommie. “Observation of topologically protected states at crystalline phase boundaries in single-layer WSe2Nature Communications 9, 3401 (2018). Link
  9. Hyejin Ryu*, Yi Chen*, Heejung Kim, Hsin-Zon Tsai, Shujie Tang, Juan Jiang, Franklin Liou, Salman Kahn, Caihong Jia, Arash A. Omrani, Ji Hoon Shim, Zahid Hussain, Zhi-Xun Shen, Kyoo Kim, Byung Il Min, Choongyu Hwang, Michael F. Crommie, and Sung-Kwan Mo. “Persistent charge-density-wave order in single-layer TaSe2Nano Letters 18, 689-694 (2018). Link
  10. Seita Onishi, Miguel M. Ugeda, Yi Zhang, Yi Chen, Claudia Ojeda-Aristizabal, Hyejin Ryu, Sung-Kwan Mo, Zahid Hussain, Zhi-Xun Shen, Michael F. Crommie, and Alex Zettl. “Selenium capped monolayer NbSe$_2$ for two-dimensional superconductivity studies” Physica Status Solidi B 253, 2396-2399 (2016). Link
  11. Miguel M. Ugeda, Aaron J. Bradley, Yi Zhang, Seita Onishi, Yi Chen, Wei Ruan, Claudia Ojeda-Aristizabal, Hyejin Ryu, Mark T. Edmonds, Hsin-Zon Tsai, Alexander Riss, Sung-Kwan Mo, Dunghai Lee, Alex Zettl, Zahid Hussain, Zhi-Xun Shen, and Michael F. Crommie. “Characterization of collective ground states in single-layer 2H-NbSe2Nature Physics 12, 92-97 (2016). Link
  12. Qi Han*, Yi Chen*, Gerui Liu, Dapeng Yu, and Xiaosong Wu. “Observation of vacancy-induced suppression of electronic cooling in defected graphene” Physical Review B 91, 121404 (2014). Link
  13. Qi Han, Teng Gao, Rui Zhang, Yi Chen, Jianhui Chen, Gerui Liu, Yanfeng Zhang, Zhongfan Liu, Xiaosong Wu, and Dapeng Yu. “Highly sensitive hot electron bolometer based on disordered graphene” Scientific Reports 3, 3533 (2013). Link

    * These authors contributed equally.

Education & Experience

Peking University. B.S. in Physics, 2010-2014.
• Thesis title: Electron-phonon Scattering in Disordered Graphene and Its Application in Bolometry
• Advisor: Profs. Xiaosong Wu, Dapeng Yu

University of California, Berkeley. Ph.D. in Physics. 2014-2020.
• Thesis title: Many-Body Ground States in Single-Layer Transition Metal Dichalcogenides
• Advisor: Prof. Michael F. Crommie

University of California, Berkeley. Course design and head teaching assistant. 2016-2017.
• Development of a new undergraduate lab course Physics 5BL at UC Berkeley
• Designing and testing of 8 undergraduate lab experiments using a sensor+DAQ platform with an emphasis on setup building and data analysis
• Wrote up over-100-page pedagogical lab manuals
• Won the Outstanding Graduate Student Instructor Award, UC Berkeley, 2016-2017

Center for Quantum Nanoscience, Institute for Basic Science, 2020-2022.
• Quantum coherent manipulation of individual atomic spins on surfaces
• Bottom-up quantum nanodevices towards the realization of quantum-gate-based operations
• Atomic-scale quantum sensing and simulation
• Advisor: Prof. Andreas Heinrich