Publications | Zong Group @ Stanford

Equal contributor Corresponding author

2026

Atomically resolved acoustic dynamics coupled with magnetic order in a van der Waals antiferromagnet
Faran Zhou, Kyle Hwangbo, Sung Soo Ha, Xiao-Wei Zhang, Sae Hwan Chun, Jaeku Park, Intae Eom, Qianni Jiang, Zekai Yang, Marc Zajac, Sungwon Kim, Sungwook Choi, Zhaodong Chu, Kyoung Hun Oh, Yifan Su, Alfred Zong, Elton J. G. Santos, Ting Cao, Jiun-Haw Chu, Stephan O. Hruszkewycz, Nuh Gedik, Di Xiao, Hyunjung Kim, Xiaodong Xu, Haidan Wen
Advanced Materials (2026). https://doi.org/10.1002/adma.202522280

2025

Structural contribution to light-induced gap suppression in Ta₂NiSe₅
Zijing Chen, Chenhang Xu, Chendi Xie, Weichen Tang, Qiaomei Liu, Dong Wu, Qing Xu, Tao Jiang, Pengfei Zhu, Xiao Zou, Jun Li, Zhiwei Wang, Nanlin Wang, Dong Qian, Alfred Zong, Dao Xiang
Physical Review Letters 135, 096901 (2025)

Large moiré superstructure of stacked incommensurate charge density waves
B. Q. Lv, Yifan Su, Alfred Zong, Qiaomei Liu, Dong Wu, Noah F. Q. Yuan, Zhengwei Nie, Jiarui Li, Suchismita Sarker, Sheng Meng, Jacob P. C. Ruff, N. L. Wang, Nuh Gedik
Nature Materials (2025). https://doi.org/10.1038/s41563-025-02360-1

Bidirectional ultrafast control of charge density waves via phase competition
Honglie Ning, Kyoung Hun Oh, Yifan Su, Zhengyan Darius Shi, Dong Wu, Qiaomei Liu, B. Q. Lv, Alfred Zong, Gyeongbo Kang, Hyeongi Choi, Hyun-Woo J. Kim, Seunghyeok Ha, Jaehwon Kim, Suchismita Sarker, Jacob P. C. Ruff, B. J. Kim, N. L. Wang, Todadri Senthil, Hoyoung Jang, Nuh Gedik
Physical Review Letters 135, 246504 (2025)

Revisiting the charge-density-wave superlattice of 1T-TiSe₂
Wei Wang, Patrick Liu, Lijun Wu, Jing Tao, Genda Gu, Alfred Zong, Yimei Zhu
arXiv:2502.11342 (2025)

Joint commensuration in moiré charge-order superlattices drives shear topological defects
Kyoung Hun Oh, Yifan Su, Honglie Ning, B. Q. Lv, Alfred Zong, Dong Wu, Qiaomei Liu, Gyeongbo Kang, Hyeongi Choi, Hyun-Woo J. Kim, Seunghyeok Ha, Jaehwon Kim, Suchismita Sarker, Jacob P. C. Ruff, Xiaozhe Shen, Duan Luo, Stephen Weathersby, Patrick Kramer, Xinxin Cheng, Dongsung Choi, Doron Azoury, Masataka Mogi, B. J. Kim, N. L. Wang, Hoyoung Jang, Nuh Gedik
arXiv:2509.16493 (2025)

Time-domain identification of distinct mechanisms for competing charge density waves in a rare-earth tritelluride
Yifan Su, B. Q. Lv, Alfred Zong, Aaron Müller, Sambuddha Chattopadhyay, Pavel E. Dolgirev, Anisha G. Singh, Joshua A. W. Straquadine, Dongsung Choi, Doron Azoury, Masataka Mogi, Ian R. Fisher, Eugene Demler, Nuh Gedik
arXiv:2503.13936 (2025)

[Review] Time-domain study of coupled collective excitations in quantum materials
Chenhang Xu, Alfred Zong
npj Quantum Materials 10, 21 (2025)

Correlated spin-wave generation and domain-wall oscillation in a topologically textured magnetic film
Chuhang Liu, Fangzhou Ai, Spencer Reisbick, Alfred Zong, Alexandre Pofelski, Myung-Geun Han, Fernando Camino, Chunguang Jing, Vitaliy Lomakin, Yimei Zhu
Nature Materials 24, 406–413 (2025)

Observation of orbital-selective dual modulations in an anisotropic antiferromagnetic kagome metal TbTi₃⁢Bi₄
Renjie Zhang, Bocheng Yu, Hengxin Tan, Yiwei Cheng, Feiran Shen, Junye Yang, Dan Mu, Xinru Han, Alfred Zong, Quanxin Hu, Xuezhi Chen, Yudong Hu, Chengnuo Meng, Junchao Ren, Junqin Li, Zhenhua Chen, Zhengtai Liu, Mao Ye, Makoto Hashimoto, Donghui Lu, Shifeng Jin, Binghai Yan, Lunhua He, Ziqiang Wang, Tian Shang, Yaobo Huang, Baiqing Lv, Hong Ding
Physical Review X 15, 031012 (2025)

[Perspective] The future of the correlated electron problem
A. Alexandradinata, N. P. Armitage, Andrey Baydin, Wenli Bi, Yue Cao, Hitesh J. Changlani, Eli Chertkov, Eduardo H. da Silva Neto, Luca Delacretaz, Ismail El Baggari, G.M. Ferguson, William J. Gannon, Sayed Ali Akbar Ghorashi, Berit H. Goodge, Olga Goulko, G. Grissonnanche, Alannah Hallas, Ian M. Hayes, Yu He, Edwin W. Huang, Anshul Kogar, Divine Kumah, Jong Yeon Lee, A. Legros, Fahad Mahmood, Yulia Maximenko, Nick Pellatz, Hryhoriy Polshyn, Tarapada Sarkar, Allen Scheie, Kyle L. Seyler, Zhenzhong Shi, Brian Skinner, Lucia Steinke, K. Thirunavukkuarasu, Thaís Victa Trevisan, Michael Vogl, Pavel A. Volkov, Yao Wang, Yishu Wang, Di Wei, Kaya Wei, Shuolong Yang, Xian Zhang, Ya-Hui Zhang, Liuyan Zhao, Alfred Zong
SciPost Physics Community Reports 8 (2025)

2024

Ultrafast formation of topological defects in a two-dimensional charge density wave
Yun Cheng, Alfred Zong, Lijun Wu, Qingping Meng, Wei Xia, Fengfeng Qi, Pengfei Zhu, Xiao Zou, Tao Jiang, Yanfeng Guo, Jasper van Wezel, Anshul Kogar, Michael W. Zuerch, Jie Zhang, Yimei Zhu, Dao Xiang
Nature Physics 20, 54–60 (2024)
Featured in News & Views: "Spot the defects"

Core-level signature of long-range density-wave order and short-range excitonic correlations probed by attosecond broadband spectroscopy
Alfred Zong, Sheng-Chih Lin, Shunsuke A. Sato, Emma Berger, Bailey R. Nebgen, Marcus Hui, B. Q. Lv, Yun Cheng, Wei Xia, Yanfeng Guo, Dao Xiang, Michael W. Zuerch
arXiv:2407.00772 (2024)

Hidden correlations in stochastic photoinduced dynamics of a solid-state electrolyte
Jackson McClellan, Alfred Zong, Kim H. Pham, Hanzhe Liu, Zachery W. B. Iton, Burak Guzelturk, Donald A. Walko, Haidan Wen, Scott K. Cushing, Michael W. Zuerch
arXiv:2406.06832 (2024)

Room temperature nonvolatile optical control of polar order in a charge density wave
Qiaomei Liu, Dong Wu, Tianyi Wu, Shanshan Han, Yiran Peng, Zhihong Yuan, Yihan Cheng, Bohan Li, Tianchen Hu, Li Yue, Shuxiang Xu, Ruoxuan Ding, Ming Lu, Rongsheng Li, Sijie Zhang, Baiqing Lv, Alfred Zong, Yifan Su, Nuh Gedik, Zhiping Yin, Tao Dong, Nanlin Wang
Nature Communications 15, 8937 (2024)

UV-induced reaction pathways in bromoform probed with ultrafast electron diffraction
Lars Hoffmann, Benjamin W. Toulson, Jie Yang, Catherine A. Saladrigas, Alfred Zong, Sri Bhavya Muvva, Joao Pedro Figueira Nunes, Alexander H. Reid, Andrew R. Attar, Duan Luo, Fuhao Ji, Ming-Fu Lin, Qingyuan Fan, Stephen P. Weathersby, Xiaozhe Shen, Xijie Wang, Thomas J. A. Wolf, Daniel M. Neumark, Stephen R. Leone, Michael W. Zuerch, Martin Centurion, Oliver Gessner
Journal of the American Chemical Society 146, 28070–28079 (2024)

Coexistence of interacting charge density waves in a layered semiconductor
B. Q. Lv, Alfred Zong, Dong Wu, Zhengwei Nie, Yifan Su, Dongsung Choi, Batyr Ilyas, Bryan T. Fichera, Jiarui Li, Edoardo Baldini, Masataka Mogi, Y.-B. Huang, Hoi Chun Po, Sheng Meng, Yao Wang, N. L. Wang, Nuh Gedik
Physical Review Letters 132, 206401 (2024)

A solid-state high harmonic generation spectrometer with cryogenic cooling
Finn Kohrell, Bailey R. Nebgen, Jacob A. Spies, Richard Hollinger, Alfred Zong, Can Uzundal, Christian Spielmann, Michael Zuerch
Review of Scientific Instruments 95, 023906 (2024)

2023

Spin-mediated shear oscillators in a van der Waals antiferromagnet
Alfred Zong, Qi Zhang, Faran Zhou, Yifan Su, Kyle Hwangbo, Xiaozhe Shen, Qianni Jiang, Haihua Liu, Thomas E. Gage, Donald A. Walko, Michael E. Kozina, Duan Luo, Alexander H. Reid, Jie Yang, Suji Park, Saul H. Lapidus, Jiun-Haw Chu, Ilke Arslan, Xijie Wang, Di Xiao, Xiaodong Xu, Nuh Gedik, Haidan Wen
Nature 620, 988–993 (2023)
Argonne News: "Scientists discover unusual ultrafast motion in layered magnetic materials"

Delamination-assisted ultrafast wrinkle formation in a freestanding film
Yifan Su, Alfred Zong, Anshul Kogar, Di Lu, Seung Sae Hong, Byron Freelon, Timm Rohwer, Bai Yang Wang, Harold Y. Hwang, Nuh Gedik
Nano Letters 23, 10772–10778 (2023)

Design and construction of a compact, high-repetition-rate ultrafast electron diffraction instrument
Byron Freelon, Timm Rohwer, Alfred Zong, Anshul Kogar, Hengyun Zhou, Liang Jie Wong, Emre Ergeçen, Nuh Gedik
Review of Scientific Instruments 94, 053305 (2023)

Evidence for bootstrap percolation dynamics in a photoinduced phase transition
Tyler Carbin, Xinshu Zhang, Adrian B Culver, Hengdi Zhao, Alfred Zong, Rishi Acharya, Cecilia J Abbamonte, Rahul Roy, Gang Cao, Anshul Kogar
Physical Review Letters 130, 186902 (2023)

The spontaneous symmetry breaking in Ta₂NiSe₅ is structural in nature
Edoardo Baldini, Alfred Zong, Dongsung Choi, Changmin Lee, Marios H. Michael, Lukas Windgaetter, Igor I. Mazin, Simone Latini, Doron Azoury, Baiqing Lv, Anshul Kogar, Yifan Su, Yao Wang, Yangfan Lu, Tomohiro Takayama, Hidenori Takagi, Andrew J. Millis, Angel Rubio, Eugene Demler, Nuh Gedik
Proceedings of the National Academy of Sciences of the U.S.A. 120, e2221688120 (2023)
Max-Planck News: "Scientists reveal the role of structural symmetry breaking in a candidate correlated quantum material for dissipationless energy transport"

[Review] Emerging ultrafast techniques for studying quantum materials
Alfred Zong, Bailey R. Nebgen, Sheng-Chih Lin, Jacob A. Spies, Michael Zuerch
Nature Reviews Materials 8, 224–240 (2023)

Probing lithium mobility at a solid electrolyte surface
Clarisse Woodahl, Sasawat Jamnuch, Angelique Amado, Can B. Uzundal, Emma Berger, Paul Manset, Yisi Zhu, Yan Li, Dillon D. Fong, Justin G. Connell, Yasuyuki Hirata, Yuya Kubota, Shigeki Owada, Kensuke Tono, Makina Yabashi, Suzanne G. E. te Velthuis, Sanja Tepavcevic, Iwao Matsuda, Walter S. Drisdell, Craig P. Schwartz, John W. Freeland, Tod A. Pascal, Alfred Zong, Michael Zuerch
Nature Materials 22, 848–852 (2023)
Berkeley Chemistry News: "The search for a nonflammable lithium battery technology"

Intrinsic 1T' phase induced in atomically thin 2H-MoTe₂ by a single terahertz pulse
Jiaojian Shi, Ya-Qing Bie, Alfred Zong, Shiang Fang, Wei Chen, Jinchi Han, Zhaolong Cao, Yong Zhang, Takashi Taniguchi, Kenji Watanabe, Xuewen Fu, Vladimir Bulović, Efthimios Kaxiras, Edoardo Baldini, Pablo Jarillo-Herrero, Keith A. Nelson
Nature Communications 14, 5905 (2023)

2022

Photoinduced dimension crossover in 1T-TiSe₂
Alfred Zong, Yun Cheng, Jun Li, Wei Xia, Shaofeng Duan, Wenxuan Zhao, Yidian Li, Fengfeng Qi, Jun Wu, Lingrong Zhao, Pengfei Zhu, Xiao Zou, Tao Jiang, Yanfeng Guo, Lexian Yang, Dong Qian, Wentao Zhang, Anshul Kogar, Michael W. Zuerch, Dao Xiang, Jie Zhang
Proceedings of XXIII International Conference on Ultrafast Phenomena Th2B.1 (2022)

Dynamical criticality of spin-shear coupling in van der Waals antiferromagnets
Faran Zhou, Kyle Hwangbo, Qi Zhang, Chong Wang, Lingnan Shen, Jiawei Zhang, Qianni Jiang, Alfred Zong, Yifan Su, Marc Zajac, Youngjun Ahn, Donald A Walko, Richard D Schaller, Jiun-haw Chu, Nuh Gedik, Xiaodong Xu, Di Xiao, Haidan Wen
Nature Communications 13, 6598 (2022)

Periodic dynamics in superconductors induced by an impulsive optical quench
Pavel E. Dolgirev, Alfred Zong, Marios H. Michael, Jonathan B. Curtis, Daniel Podolsky, Andrea Cavalleri, Eugene Demler
Communications Physics 5, 234 (2022)

Light-induced dimension crossover dictated by excitonic correlations
Yun Cheng, Alfred Zong, Jun Li, Wei Xia, Shaofeng Duan, Wenxuan Zhao, Yidian Li, Fengfeng Qi, Jun Wu, Lingrong Zhao, Pengfei Zhu, Xiao Zou, Tao Jiang, Yanfeng Guo, Lexian Yang, Dong Qian, Wentao Zhang, Anshul Kogar, Michael W. Zuerch, Dao Xiang, Jie Zhang
Nature Communications 13, 963 (2022)
Berkeley Chemistry News: "An electronic crystal turned flat"

Dynamics of topological defects after a photo-induced melting of a charge-density wave
Andrei E. Tarkhov, A. V. Rozhkov, Alfred Zong, Anshul Kogar, Nuh Gedik, Boris V. Fine
arXiv:2203.05001 (2022)

Unconventional hysteretic transition in a charge density wave
B. Q. Lv, Alfred Zong, D. Wu, A. V. Rozhkov, Boris V. Fine, Su-Di Chen, Makoto Hashimoto, Dong-Hui Lu, M. Li, Y.-B. Huang, Jacob P. C. Ruff, Donald A. Walko, Z. H. Chen, Inhui Hwang, Yifan Su, Xiaozhe Shen, Xirui Wang, Fei Han, Hoi Chun Po, Yao Wang, Pablo Jarillo-Herrero, Xijie Wang, Hua Zhou, Cheng-Jun Sun, Haidan Wen, Zhi-Xun Shen, N. L. Wang, Nuh Gedik
Physical Review Letters 128, 036401 (2022)
MIT News: "Scientists discover a mysterious transition in an electronic crystal"

2021

[Book] Emergent states in photoinduced charge-density-wave transitions
Alfred Zong
Springer Theses Series, Springer Cham (2021)

Polarization-resolved extreme-ultraviolet second-harmonic generation from LiNbO₃
Can B. Uzundal, Sasawat Jamnuch, Emma Berger, Clarisse Woodahl, Paul Manset, Yasuyuki Hirata, Toshihide Sumi, Angelique Amado, Hisazumi Akai, Yuya Kubota, Shigeki Owada, Kensuke Tono, Makina Yabashi, John W. Freeland, Craig P. Schwartz, Walter S. Drisdell, Iwao Matsuda, Tod A. Pascal, Alfred Zong, Michael Zuerch
Physical Review Letters 127, 237402 (2021)

[Review] Unconventional light-induced states visualized by ultrafast electron diffraction and microscopy
Alfred Zong, Anshul Kogar, Nuh Gedik
MRS Bulletin 46, 720–730 (2021)

A versatile sample fabrication method for ultrafast electron diffraction
Ya-Qing Bie, Alfred Zong, Xirui Wang, Pablo Jarillo-Herrero, Nuh Gedik
Ultramicroscopy 230, 113389 (2021)

Phase competition and light-induced ordering in charge density waves (invited)
Alfred Zong, Anshul Kogar, Nuh Gedik
Proceedings of Ultrafast Phenomena and Nanophotonics XXV 11684, 1168412 (2021)

Role of equilibrium fluctuations in light-induced order
Alfred Zong, Pavel E. Dolgirev, Anshul Kogar, Yifan Su, Xiaozhe Shen, Joshua A. W. Straquadine, Xirui Wang, Duan Luo, Michael E. Kozina, Alexander H. Reid, Renkai Li, Jie Yang, Stephen P. Weathersby, Suji Park, Edbert J. Sie, Pablo Jarillo-Herrero, Ian R. Fisher, Xijie Wang, Eugene Demler, Nuh Gedik
Physical Review Letters 127, 227401 (2021)

2020

Second harmonic generation as a probe of broken mirror symmetry
Bryan T. Fichera, Anshul Kogar, Linda Ye, Bilal Gökce, Alfred Zong, Joseph G. Checkelsky, Nuh Gedik
Physical Review B 101, 241106(R) (2020)

Light-induced charge density wave in LaTe₃
Anshul Kogar, Alfred Zong, Pavel E. Dolgirev, Xiaozhe Shen, Joshua Straquadine, Ya-Qing Bie, Xirui Wang, Timm Rohwer, I-Cheng Tung, Yafang Yang, Renkai Li, Jie Yang, Stephen Weathersby, Suji Park, Michael E. Kozina, Edbert J. Sie, Haidan Wen, Pablo Jarillo-Herrero, Ian R. Fisher, Xijie Wang, Nuh Gedik
Nature Physics 16, 159–163 (2020)
MIT News: "Using light to generate order in an exotic material"

Self-similar dynamics of order parameter fluctuations in pump-probe experiments
Pavel E. Dolgirev, Marios H. Michael, Alfred Zong, Nuh Gedik, Eugene Demler
Physical Review B 101, 174306 (2020)

High resolution time- and angle-resolved photoemission spectroscopy with 11 eV laser pulses
Changmin Lee, Timm Rohwer, Edbert J. Sie, Alfred Zong, Edoardo Baldini, Joshua Straquadine, Philip Walmsley, Dillon Gardner, Young S. Lee, Ian R. Fisher, Nuh Gedik
Review of Scientific Instruments 91, 043102 (2020)

Amplitude dynamics of charge density wave in LaTe₃: Theoretical description of pump-probe experiments
Pavel E. Dolgirev, A. V. Rozhkov, Alfred Zong, Anshul Kogar, Nuh Gedik, Boris V. Fine
Physical Review B 101, 054203 (2020)

Spontaneous gyrotropic electronic order in a transition-metal dichalcogenide
Su-Yang Xu, Qiong Ma, Yang Gao, Anshul Kogar, Alfred Zong, Andrés M. Mier Valdivia, Thao H Dinh, Shin-ming Huang, Bahadur Singh, Chuang-Han Hsu, Tay-Rong Chang, Jacob P. C. Ruff, Kenji Watanabe, Takashi Taniguchi, Hsin Lin, Goran Karapetrov, Di Xiao, Pablo Jarillo-Herrero, Nuh Gedik
Nature 578, 545–549 (2020)
MIT News: "Using light to put a twist on electrons"

2019

Observation of multiple types of topological fermions in PdBiSe
B. Q. Lv, Z.-L. Feng, J.-Z. Zhao, Noah F. Q. Yuan, A. Zong, K. F. Luo, R. Yu, Y.-B. Huang, V. N. Strocov, A. Chikina, A. A. Soluyanov, N. Gedik, Y.-G. Shi, T. Qian, H. Ding
Physical Review B 99, 241104(R) (2019)

Dynamical slowing-down in an ultrafast photoinduced phase transition
Alfred Zong, Pavel E. Dolgirev, Anshul Kogar, Emre Ergeçen, Mehmet B. Yilmaz, Ya-Qing Bie, Timm Rohwer, I-Cheng Tung, Joshua Straquadine, Xirui Wang, Yafang Yang, Xiaozhe Shen, Renkai Li, Jie Yang, Suji Park, Matthias C. Hoffmann, Benjamin K. Ofori-Okai, Michael E. Kozina, Haidan Wen, Xijie Wang, Ian R. Fisher, Pablo Jarillo-Herrero, Nuh Gedik
Physical Review Letters 123, 097601 (2019)

Evidence for topological defects in a photoinduced phase transition
Alfred Zong, Anshul Kogar, Ya-Qing Bie, Timm Rohwer, Changmin Lee, Edoardo Baldini, Emre Ergeçen, Mehmet B. Yilmaz, Byron Freelon, Edbert J. Sie, Hengyun Zhou, Joshua Straquadine, Philip Walmsley, Pavel E. Dolgirev, Alexander V. Rozhkov, Ian R. Fisher, Pablo Jarillo-Herrero, Boris V. Fine, Nuh Gedik
Nature Physics 15, 27–31 (2019)
MIT News: "When light, not heat, causes melting"

Combining time-resolved optical (TOS), electronic (trARPES) and structural (UED) probes on the class of rare earth tritellurides RTe₃
Timm Rohwer, Alfred Zong, Anshul Kogar, Ya-Qing Bie, Changmin Lee, Edoardo Baldini, Emre Ergeçen, Mehmet B. Yilmaz, Byron Freelon, Edbert J. Sie, Hengyun Zhou, Joshua Straquadine, Philip Walmsley, Pavel E. Dolgirev, Alexander V. Rozhkov, Ian R. Fisher, Pablo Jarillo-Herrero, Boris V. Fine, Nuh Gedik
Proceedings of XXI International Conference on Ultrafast Phenomena EPJ Web of Conferences 205, 04009 (2019)

2018

Ultrafast manipulation of mirror domain walls in a charge density wave
Alfred Zong, Xiaozhe Shen, Anshul Kogar, Linda Ye, Carolyn Marks, Debanjan Chowdhury, Timm Rohwer, Byron Freelon, Stephen Weathersby, Renkai Li, Jie Yang, Joseph Checkelsky, Xijie Wang, Nuh Gedik
Science Advances 4, eaau5501 (2018)
SLAC News: "Researchers switch material from one state to another with a single flash of light"

2017

Large thermopower from dressed quasiparticles in the layered cobaltates and rhodates
Su-Di Chen, Yu He, Alfred Zong, Yan Zhang, Makoto Hashimoto, Bin-Bin Zhang, Shu-Hua Yao, Yan-Bin Chen, Jian Zhou, Yan-Feng Chen, Sung-Kwan Mo, Zahid Hussain, Donghui Lu, Zhi-Xun Shen
Physical Review B 96, 081109 (2017)

2016

Invited article: High resolution angle resolved photoemission with tabletop 11 eV laser
Yu He, Inna M. Vishik, Ming Yi, Shuolong Yang, Zhongkai Liu, James J. Lee, Sudi Chen, Slavko N. Rebec, Dominik Leuenberger, Alfred Zong, C. Michael Jefferson, Robert G. Moore, Patrick S. Kirchmann, Andrew J. Merriam, Zhi-Xun Shen
Review of Scientific Instruments 87, 011301 (2016)

2014

StrokeBank: Automating personalized Chinese handwriting generation
Alfred Zong, Yuke Zhu
Proceedings of 26th Innovative Applications of Artificial Intelligence 3024–3029 (2014)